1780681980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{947}}^1$

素因数の和:1025

約数の個数: 288

約数和(自身を含む): 6439362048

約数和(自身を除く): 4658680068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 37, 42, 44, 55, 60, 66, 70, 74, 77, 84, 105, 110, 111, 121, 132, 140, 148, 154, 165, 185, 210, 220, 222, 231, 242, 259, 308, 330, 363, 370, 385, 407, 420, 444, 462, 484, 518, 555, 605, 660, 726, 740, 770, 777, 814, 847, 924, 947, 1036, 1110, 1155, 1210, 1221, 1295, 1452, 1540, 1554, 1628, 1694, 1815, 1894, 2035, 2220, 2310, 2420, 2442, 2541, 2590, 2841, 2849, 3108, 3388, 3630, 3788, 3885, 4070, 4235, 4477, 4620, 4735, 4884, 5082, 5180, 5682, 5698, 6105, 6629, 7260, 7770, 8140, 8470, 8547, 8954, 9470, 10164, 10417, 11364, 11396, 12210, 12705, 13258, 13431, 14205, 14245, 15540, 16940, 17094, 17908, 18940, 19887, 20834, 22385, 24420, 25410, 26516, 26862, 28410, 28490, 31251, 31339, 33145, 34188, 35039, 39774, 41668, 42735, 44770, 50820, 52085, 53724, 56820, 56980, 62502, 62678, 66290, 67155, 70078, 72919, 79548, 85470, 89540, 94017, 99435, 104170, 105117, 114587, 125004, 125356, 132580, 134310, 140156, 145838, 156255, 156695, 170940, 175195, 188034, 198870, 208340, 210234, 218757, 229174, 245273, 268620, 291676, 312510, 313390, 343761, 350390, 364595, 376068, 385429, 397740, 420468, 437514, 458348, 470085, 490546, 525585, 572935, 625020, 626780, 687522, 700780, 729190, 735819, 770858, 802109, 875028, 940170, 981092, 1051170, 1093785, 1145870, 1156287, 1226365, 1375044, 1458380, 1471638, 1541716, 1604218, 1718805, 1880340, 1927145, 2102340, 2187570, 2291740, 2312574, 2406327, 2452730, 2698003, 2943276, 3208436, 3437610, 3679095, 3854290, 4010545, 4239719, 4375140, 4625148, 4812654, 4905460, 5396006, 5781435, 6875220, 7358190, 7708580, 8021090, 8094009, 8479438, 9625308, 10792012, 11562870, 12031635, 12719157, 13490015, 14716380, 16042180, 16188018, 16958876, 21198595, 23125740, 24063270, 25438314, 26980030, 29678033, 32376036, 40470045, 42397190, 48126540, 50876628, 53960060, 59356066, 63595785, 80940090, 84794380, 89034099, 118712132, 127191570, 148390165, 161880180, 178068198, 254383140, 296780330, 356136396, 445170495, 593560660, 890340990, 1780681980]

約数ペア:

[(1, 1780681980), (2, 890340990), (3, 593560660), (4, 445170495), (5, 356136396), (6, 296780330), (7, 254383140), (10, 178068198), (11, 161880180), (12, 148390165), (14, 127191570), (15, 118712132), (20, 89034099), (21, 84794380), (22, 80940090), (28, 63595785), (30, 59356066), (33, 53960060), (35, 50876628), (37, 48126540), (42, 42397190), (44, 40470045), (55, 32376036), (60, 29678033), (66, 26980030), (70, 25438314), (74, 24063270), (77, 23125740), (84, 21198595), (105, 16958876), (110, 16188018), (111, 16042180), (121, 14716380), (132, 13490015), (140, 12719157), (148, 12031635), (154, 11562870), (165, 10792012), (185, 9625308), (210, 8479438), (220, 8094009), (222, 8021090), (231, 7708580), (242, 7358190), (259, 6875220), (308, 5781435), (330, 5396006), (363, 4905460), (370, 4812654), (385, 4625148), (407, 4375140), (420, 4239719), (444, 4010545), (462, 3854290), (484, 3679095), (518, 3437610), (555, 3208436), (605, 2943276), (660, 2698003), (726, 2452730), (740, 2406327), (770, 2312574), (777, 2291740), (814, 2187570), (847, 2102340), (924, 1927145), (947, 1880340), (1036, 1718805), (1110, 1604218), (1155, 1541716), (1210, 1471638), (1221, 1458380), (1295, 1375044), (1452, 1226365), (1540, 1156287), (1554, 1145870), (1628, 1093785), (1694, 1051170), (1815, 981092), (1894, 940170), (2035, 875028), (2220, 802109), (2310, 770858), (2420, 735819), (2442, 729190), (2541, 700780), (2590, 687522), (2841, 626780), (2849, 625020), (3108, 572935), (3388, 525585), (3630, 490546), (3788, 470085), (3885, 458348), (4070, 437514), (4235, 420468), (4477, 397740), (4620, 385429), (4735, 376068), (4884, 364595), (5082, 350390), (5180, 343761), (5682, 313390), (5698, 312510), (6105, 291676), (6629, 268620), (7260, 245273), (7770, 229174), (8140, 218757), (8470, 210234), (8547, 208340), (8954, 198870), (9470, 188034), (10164, 175195), (10417, 170940), (11364, 156695), (11396, 156255), (12210, 145838), (12705, 140156), (13258, 134310), (13431, 132580), (14205, 125356), (14245, 125004), (15540, 114587), (16940, 105117), (17094, 104170), (17908, 99435), (18940, 94017), (19887, 89540), (20834, 85470), (22385, 79548), (24420, 72919), (25410, 70078), (26516, 67155), (26862, 66290), (28410, 62678), (28490, 62502), (31251, 56980), (31339, 56820), (33145, 53724), (34188, 52085), (35039, 50820), (39774, 44770), (41668, 42735)]