640905408

素因数分解:

$2^6\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:324

約数の個数: 336

約数和(自身を含む): 2236695552

約数和(自身を除く): 1595790144

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 18, 22, 24, 26, 31, 32, 33, 36, 39, 44, 48, 52, 62, 64, 66, 72, 78, 88, 93, 96, 99, 104, 117, 124, 132, 143, 144, 156, 176, 186, 192, 198, 208, 234, 248, 251, 264, 279, 286, 288, 312, 341, 352, 372, 396, 403, 416, 429, 468, 496, 502, 528, 558, 572, 576, 624, 682, 704, 744, 753, 792, 806, 832, 858, 936, 992, 1004, 1023, 1056, 1116, 1144, 1209, 1248, 1287, 1364, 1488, 1506, 1584, 1612, 1716, 1872, 1984, 2008, 2046, 2112, 2232, 2259, 2288, 2418, 2496, 2574, 2728, 2761, 2976, 3012, 3069, 3168, 3224, 3263, 3432, 3627, 3744, 4016, 4092, 4433, 4464, 4518, 4576, 4836, 5148, 5456, 5522, 5952, 6024, 6138, 6336, 6448, 6526, 6864, 7254, 7488, 7781, 8032, 8184, 8283, 8866, 8928, 9036, 9152, 9672, 9789, 10296, 10912, 11044, 12048, 12276, 12896, 13052, 13299, 13728, 14508, 15562, 16064, 16368, 16566, 17732, 17856, 18072, 19344, 19578, 20592, 21824, 22088, 23343, 24096, 24552, 24849, 25792, 26104, 26598, 27456, 29016, 29367, 31124, 32736, 33132, 35464, 35893, 36144, 38688, 39156, 39897, 41184, 44176, 46686, 48192, 49104, 49698, 52208, 53196, 58032, 58734, 62248, 65472, 66264, 70029, 70928, 71786, 72288, 77376, 78312, 79794, 82368, 85591, 88352, 93372, 98208, 99396, 101153, 104416, 106392, 107679, 116064, 117468, 124496, 132528, 140058, 141856, 143572, 144576, 156624, 159588, 171182, 176704, 186744, 196416, 198792, 202306, 208832, 212784, 215358, 232128, 234936, 248992, 256773, 265056, 280116, 283712, 287144, 303459, 313248, 319176, 323037, 342364, 373488, 397584, 404612, 425568, 430716, 469872, 497984, 513546, 530112, 560232, 574288, 606918, 626496, 638352, 646074, 684728, 746976, 770319, 795168, 809224, 851136, 861432, 910377, 939744, 1027092, 1112683, 1120464, 1148576, 1213836, 1276704, 1292148, 1369456, 1493952, 1540638, 1590336, 1618448, 1722864, 1820754, 1879488, 2054184, 2225366, 2240928, 2297152, 2427672, 2553408, 2584296, 2738912, 3081276, 3236896, 3338049, 3445728, 3641508, 4108368, 4450732, 4481856, 4855344, 5168592, 5477824, 6162552, 6473792, 6676098, 6891456, 7283016, 8216736, 8901464, 9710688, 10014147, 10337184, 12325104, 13352196, 14566032, 16433472, 17802928, 19421376, 20028294, 20674368, 24650208, 26704392, 29132064, 35605856, 40056588, 49300416, 53408784, 58264128, 71211712, 80113176, 106817568, 160226352, 213635136, 320452704, 640905408]

約数ペア:

[(1, 640905408), (2, 320452704), (3, 213635136), (4, 160226352), (6, 106817568), (8, 80113176), (9, 71211712), (11, 58264128), (12, 53408784), (13, 49300416), (16, 40056588), (18, 35605856), (22, 29132064), (24, 26704392), (26, 24650208), (31, 20674368), (32, 20028294), (33, 19421376), (36, 17802928), (39, 16433472), (44, 14566032), (48, 13352196), (52, 12325104), (62, 10337184), (64, 10014147), (66, 9710688), (72, 8901464), (78, 8216736), (88, 7283016), (93, 6891456), (96, 6676098), (99, 6473792), (104, 6162552), (117, 5477824), (124, 5168592), (132, 4855344), (143, 4481856), (144, 4450732), (156, 4108368), (176, 3641508), (186, 3445728), (192, 3338049), (198, 3236896), (208, 3081276), (234, 2738912), (248, 2584296), (251, 2553408), (264, 2427672), (279, 2297152), (286, 2240928), (288, 2225366), (312, 2054184), (341, 1879488), (352, 1820754), (372, 1722864), (396, 1618448), (403, 1590336), (416, 1540638), (429, 1493952), (468, 1369456), (496, 1292148), (502, 1276704), (528, 1213836), (558, 1148576), (572, 1120464), (576, 1112683), (624, 1027092), (682, 939744), (704, 910377), (744, 861432), (753, 851136), (792, 809224), (806, 795168), (832, 770319), (858, 746976), (936, 684728), (992, 646074), (1004, 638352), (1023, 626496), (1056, 606918), (1116, 574288), (1144, 560232), (1209, 530112), (1248, 513546), (1287, 497984), (1364, 469872), (1488, 430716), (1506, 425568), (1584, 404612), (1612, 397584), (1716, 373488), (1872, 342364), (1984, 323037), (2008, 319176), (2046, 313248), (2112, 303459), (2232, 287144), (2259, 283712), (2288, 280116), (2418, 265056), (2496, 256773), (2574, 248992), (2728, 234936), (2761, 232128), (2976, 215358), (3012, 212784), (3069, 208832), (3168, 202306), (3224, 198792), (3263, 196416), (3432, 186744), (3627, 176704), (3744, 171182), (4016, 159588), (4092, 156624), (4433, 144576), (4464, 143572), (4518, 141856), (4576, 140058), (4836, 132528), (5148, 124496), (5456, 117468), (5522, 116064), (5952, 107679), (6024, 106392), (6138, 104416), (6336, 101153), (6448, 99396), (6526, 98208), (6864, 93372), (7254, 88352), (7488, 85591), (7781, 82368), (8032, 79794), (8184, 78312), (8283, 77376), (8866, 72288), (8928, 71786), (9036, 70928), (9152, 70029), (9672, 66264), (9789, 65472), (10296, 62248), (10912, 58734), (11044, 58032), (12048, 53196), (12276, 52208), (12896, 49698), (13052, 49104), (13299, 48192), (13728, 46686), (14508, 44176), (15562, 41184), (16064, 39897), (16368, 39156), (16566, 38688), (17732, 36144), (17856, 35893), (18072, 35464), (19344, 33132), (19578, 32736), (20592, 31124), (21824, 29367), (22088, 29016), (23343, 27456), (24096, 26598), (24552, 26104), (24849, 25792)]