99391880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{354971}}^1$

素因数の和:354989

約数の個数: 32

約数和(自身を含む): 255579840

約数和(自身を除く): 156187960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 354971, 709942, 1419884, 1774855, 2484797, 2839768, 3549710, 4969594, 7099420, 9939188, 12423985, 14198840, 19878376, 24847970, 49695940, 99391880]

約数ペア:

[(1, 99391880), (2, 49695940), (4, 24847970), (5, 19878376), (7, 14198840), (8, 12423985), (10, 9939188), (14, 7099420), (20, 4969594), (28, 3549710), (35, 2839768), (40, 2484797), (56, 1774855), (70, 1419884), (140, 709942), (280, 354971)]