18511194832

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1\times {\mathrm{1667}}^1$

素因数の和:2156

約数の個数: 80

約数和(自身を含む): 38987004672

約数和(自身を除く): 20475809840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 197, 208, 271, 394, 542, 788, 1084, 1576, 1667, 2168, 2561, 3152, 3334, 3523, 4336, 5122, 6668, 7046, 10244, 13336, 14092, 20488, 21671, 26672, 28184, 40976, 43342, 53387, 56368, 86684, 106774, 173368, 213548, 328399, 346736, 427096, 451757, 656798, 694031, 854192, 903514, 1313596, 1388062, 1807028, 2627192, 2776124, 3614056, 4269187, 5254384, 5552248, 5872841, 7228112, 8538374, 11104496, 11745682, 17076748, 23491364, 34153496, 46982728, 68306992, 88996129, 93965456, 177992258, 355984516, 711969032, 1156949677, 1423938064, 2313899354, 4627798708, 9255597416, 18511194832]

約数ペア:

[(1, 18511194832), (2, 9255597416), (4, 4627798708), (8, 2313899354), (13, 1423938064), (16, 1156949677), (26, 711969032), (52, 355984516), (104, 177992258), (197, 93965456), (208, 88996129), (271, 68306992), (394, 46982728), (542, 34153496), (788, 23491364), (1084, 17076748), (1576, 11745682), (1667, 11104496), (2168, 8538374), (2561, 7228112), (3152, 5872841), (3334, 5552248), (3523, 5254384), (4336, 4269187), (5122, 3614056), (6668, 2776124), (7046, 2627192), (10244, 1807028), (13336, 1388062), (14092, 1313596), (20488, 903514), (21671, 854192), (26672, 694031), (28184, 656798), (40976, 451757), (43342, 427096), (53387, 346736), (56368, 328399), (86684, 213548), (106774, 173368)]