18464080

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1549}}^1$

素因数の和:1711

約数の個数: 40

約数和(自身を含む): 43245000

約数和(自身を除く): 24780920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 1549, 2384, 2980, 3098, 5960, 6196, 7745, 11920, 12392, 15490, 24784, 30980, 61960, 123920, 230801, 461602, 923204, 1154005, 1846408, 2308010, 3692816, 4616020, 9232040, 18464080]

約数ペア:

[(1, 18464080), (2, 9232040), (4, 4616020), (5, 3692816), (8, 2308010), (10, 1846408), (16, 1154005), (20, 923204), (40, 461602), (80, 230801), (149, 123920), (298, 61960), (596, 30980), (745, 24784), (1192, 15490), (1490, 12392), (1549, 11920), (2384, 7745), (2980, 6196), (3098, 5960)]