87193640

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{10331}}^1$

素因数の和:10553

約数の個数: 32

約数和(自身を含む): 197134560

約数和(自身を除く): 109940920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 10331, 20662, 41324, 51655, 82648, 103310, 206620, 413240, 2179841, 4359682, 8719364, 10899205, 17438728, 21798410, 43596820, 87193640]

約数ペア:

[(1, 87193640), (2, 43596820), (4, 21798410), (5, 17438728), (8, 10899205), (10, 8719364), (20, 4359682), (40, 2179841), (211, 413240), (422, 206620), (844, 103310), (1055, 82648), (1688, 51655), (2110, 41324), (4220, 20662), (8440, 10331)]