18808116680

素因数分解:

$2^3\times 5^1\times {\mathrm{5821}}^1\times {\mathrm{80777}}^1$

素因数の和:86609

約数の個数: 32

約数和(自身を含む): 42326056440

約数和(自身を除く): 23517939760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5821, 11642, 23284, 29105, 46568, 58210, 80777, 116420, 161554, 232840, 323108, 403885, 646216, 807770, 1615540, 3231080, 470202917, 940405834, 1880811668, 2351014585, 3761623336, 4702029170, 9404058340, 18808116680]

約数ペア:

[(1, 18808116680), (2, 9404058340), (4, 4702029170), (5, 3761623336), (8, 2351014585), (10, 1880811668), (20, 940405834), (40, 470202917), (5821, 3231080), (11642, 1615540), (23284, 807770), (29105, 646216), (46568, 403885), (58210, 323108), (80777, 232840), (116420, 161554)]