16807640

素因数分解:

$2^3\times 5^1\times {\mathrm{420191}}^1$

素因数の和:420202

約数の個数: 16

約数和(自身を含む): 37817280

約数和(自身を除く): 21009640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 420191, 840382, 1680764, 2100955, 3361528, 4201910, 8403820, 16807640]

約数ペア:

[(1, 16807640), (2, 8403820), (4, 4201910), (5, 3361528), (8, 2100955), (10, 1680764), (20, 840382), (40, 420191)]