17804955220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{866843}}^1$

素因数の和:866944

約数の個数: 48

約数和(自身を含む): 40776341760

約数和(自身を除く): 22971386540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 20540, 866843, 1733686, 3467372, 4334215, 8668430, 11268959, 17336860, 22537918, 45075836, 56344795, 68480597, 112689590, 136961194, 225379180, 273922388, 342402985, 684805970, 890247761, 1369611940, 1780495522, 3560991044, 4451238805, 8902477610, 17804955220]

約数ペア:

[(1, 17804955220), (2, 8902477610), (4, 4451238805), (5, 3560991044), (10, 1780495522), (13, 1369611940), (20, 890247761), (26, 684805970), (52, 342402985), (65, 273922388), (79, 225379180), (130, 136961194), (158, 112689590), (260, 68480597), (316, 56344795), (395, 45075836), (790, 22537918), (1027, 17336860), (1580, 11268959), (2054, 8668430), (4108, 4334215), (5135, 3467372), (10270, 1733686), (20540, 866843)]