780118660

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{8867}}^1$

素因数の和:9012

約数の個数: 48

約数和(自身を含む): 1689460416

約数和(自身を除く): 909341756

約数列:

[1, 2, 4, 5, 10, 20, 53, 83, 106, 166, 212, 265, 332, 415, 530, 830, 1060, 1660, 4399, 8798, 8867, 17596, 17734, 21995, 35468, 43990, 44335, 87980, 88670, 177340, 469951, 735961, 939902, 1471922, 1879804, 2349755, 2943844, 3679805, 4699510, 7359610, 9399020, 14719220, 39005933, 78011866, 156023732, 195029665, 390059330, 780118660]

約数ペア:

[(1, 780118660), (2, 390059330), (4, 195029665), (5, 156023732), (10, 78011866), (20, 39005933), (53, 14719220), (83, 9399020), (106, 7359610), (166, 4699510), (212, 3679805), (265, 2943844), (332, 2349755), (415, 1879804), (530, 1471922), (830, 939902), (1060, 735961), (1660, 469951), (4399, 177340), (8798, 88670), (8867, 87980), (17596, 44335), (17734, 43990), (21995, 35468)]