99864020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{161071}}^1$

素因数の和:161111

約数の個数: 24

約数和(自身を含む): 216480768

約数和(自身を除く): 116616748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 161071, 322142, 644284, 805355, 1610710, 3221420, 4993201, 9986402, 19972804, 24966005, 49932010, 99864020]

約数ペア:

[(1, 99864020), (2, 49932010), (4, 24966005), (5, 19972804), (10, 9986402), (20, 4993201), (31, 3221420), (62, 1610710), (124, 805355), (155, 644284), (310, 322142), (620, 161071)]