16611640

素因数分解:

$2^3\times 5^1\times {\mathrm{601}}^1\times {\mathrm{691}}^1$

素因数の和:1303

約数の個数: 32

約数和(自身を含む): 37492560

約数和(自身を除く): 20880920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 601, 691, 1202, 1382, 2404, 2764, 3005, 3455, 4808, 5528, 6010, 6910, 12020, 13820, 24040, 27640, 415291, 830582, 1661164, 2076455, 3322328, 4152910, 8305820, 16611640]

約数ペア:

[(1, 16611640), (2, 8305820), (4, 4152910), (5, 3322328), (8, 2076455), (10, 1661164), (20, 830582), (40, 415291), (601, 27640), (691, 24040), (1202, 13820), (1382, 12020), (2404, 6910), (2764, 6010), (3005, 5528), (3455, 4808)]