16988980

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{5701}}^1$

素因数の和:5859

約数の個数: 24

約数和(自身を含む): 35922600

約数和(自身を除く): 18933620

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 5701, 11402, 22804, 28505, 57010, 114020, 849449, 1698898, 3397796, 4247245, 8494490, 16988980]

約数ペア:

[(1, 16988980), (2, 8494490), (4, 4247245), (5, 3397796), (10, 1698898), (20, 849449), (149, 114020), (298, 57010), (596, 28505), (745, 22804), (1490, 11402), (2980, 5701)]