163296440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{99571}}^1$

素因数の和:99623

約数の個数: 32

約数和(自身を含む): 376382160

約数和(自身を除く): 213085720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 99571, 199142, 398284, 497855, 796568, 995710, 1991420, 3982840, 4082411, 8164822, 16329644, 20412055, 32659288, 40824110, 81648220, 163296440]

約数ペア:

[(1, 163296440), (2, 81648220), (4, 40824110), (5, 32659288), (8, 20412055), (10, 16329644), (20, 8164822), (40, 4082411), (41, 3982840), (82, 1991420), (164, 995710), (205, 796568), (328, 497855), (410, 398284), (820, 199142), (1640, 99571)]