261271920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1709}}^1$

素因数の和:1752

約数の個数: 240

約数和(自身を含む): 1015247520

約数和(自身を除く): 753975600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 49, 52, 56, 60, 65, 70, 78, 80, 84, 91, 98, 104, 105, 112, 120, 130, 140, 147, 156, 168, 182, 195, 196, 208, 210, 240, 245, 260, 273, 280, 294, 312, 336, 364, 390, 392, 420, 455, 490, 520, 546, 560, 588, 624, 637, 728, 735, 780, 784, 840, 910, 980, 1040, 1092, 1176, 1274, 1365, 1456, 1470, 1560, 1680, 1709, 1820, 1911, 1960, 2184, 2352, 2548, 2730, 2940, 3120, 3185, 3418, 3640, 3822, 3920, 4368, 5096, 5127, 5460, 5880, 6370, 6836, 7280, 7644, 8545, 9555, 10192, 10254, 10920, 11760, 11963, 12740, 13672, 15288, 17090, 19110, 20508, 21840, 22217, 23926, 25480, 25635, 27344, 30576, 34180, 35889, 38220, 41016, 44434, 47852, 50960, 51270, 59815, 66651, 68360, 71778, 76440, 82032, 83741, 88868, 95704, 102540, 111085, 119630, 133302, 136720, 143556, 152880, 155519, 167482, 177736, 179445, 191408, 205080, 222170, 239260, 251223, 266604, 287112, 311038, 333255, 334964, 355472, 358890, 410160, 418705, 444340, 466557, 478520, 502446, 533208, 574224, 622076, 666510, 669928, 717780, 777595, 837410, 888680, 933114, 957040, 1004892, 1066416, 1088633, 1244152, 1256115, 1333020, 1339856, 1435560, 1555190, 1674820, 1777360, 1866228, 2009784, 2177266, 2332785, 2488304, 2512230, 2666040, 2871120, 3110380, 3265899, 3349640, 3732456, 4019568, 4354532, 4665570, 5024460, 5332080, 5443165, 6220760, 6531798, 6699280, 7464912, 8709064, 9331140, 10048920, 10886330, 12441520, 13063596, 16329495, 17418128, 18662280, 20097840, 21772660, 26127192, 32658990, 37324560, 43545320, 52254384, 65317980, 87090640, 130635960, 261271920]

約数ペア:

[(1, 261271920), (2, 130635960), (3, 87090640), (4, 65317980), (5, 52254384), (6, 43545320), (7, 37324560), (8, 32658990), (10, 26127192), (12, 21772660), (13, 20097840), (14, 18662280), (15, 17418128), (16, 16329495), (20, 13063596), (21, 12441520), (24, 10886330), (26, 10048920), (28, 9331140), (30, 8709064), (35, 7464912), (39, 6699280), (40, 6531798), (42, 6220760), (48, 5443165), (49, 5332080), (52, 5024460), (56, 4665570), (60, 4354532), (65, 4019568), (70, 3732456), (78, 3349640), (80, 3265899), (84, 3110380), (91, 2871120), (98, 2666040), (104, 2512230), (105, 2488304), (112, 2332785), (120, 2177266), (130, 2009784), (140, 1866228), (147, 1777360), (156, 1674820), (168, 1555190), (182, 1435560), (195, 1339856), (196, 1333020), (208, 1256115), (210, 1244152), (240, 1088633), (245, 1066416), (260, 1004892), (273, 957040), (280, 933114), (294, 888680), (312, 837410), (336, 777595), (364, 717780), (390, 669928), (392, 666510), (420, 622076), (455, 574224), (490, 533208), (520, 502446), (546, 478520), (560, 466557), (588, 444340), (624, 418705), (637, 410160), (728, 358890), (735, 355472), (780, 334964), (784, 333255), (840, 311038), (910, 287112), (980, 266604), (1040, 251223), (1092, 239260), (1176, 222170), (1274, 205080), (1365, 191408), (1456, 179445), (1470, 177736), (1560, 167482), (1680, 155519), (1709, 152880), (1820, 143556), (1911, 136720), (1960, 133302), (2184, 119630), (2352, 111085), (2548, 102540), (2730, 95704), (2940, 88868), (3120, 83741), (3185, 82032), (3418, 76440), (3640, 71778), (3822, 68360), (3920, 66651), (4368, 59815), (5096, 51270), (5127, 50960), (5460, 47852), (5880, 44434), (6370, 41016), (6836, 38220), (7280, 35889), (7644, 34180), (8545, 30576), (9555, 27344), (10192, 25635), (10254, 25480), (10920, 23926), (11760, 22217), (11963, 21840), (12740, 20508), (13672, 19110), (15288, 17090)]