206907640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{166861}}^1$

素因数の和:166903

約数の個数: 32

約数和(自身を含む): 480562560

約数和(自身を除く): 273654920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 166861, 333722, 667444, 834305, 1334888, 1668610, 3337220, 5172691, 6674440, 10345382, 20690764, 25863455, 41381528, 51726910, 103453820, 206907640]

約数ペア:

[(1, 206907640), (2, 103453820), (4, 51726910), (5, 41381528), (8, 25863455), (10, 20690764), (20, 10345382), (31, 6674440), (40, 5172691), (62, 3337220), (124, 1668610), (155, 1334888), (248, 834305), (310, 667444), (620, 333722), (1240, 166861)]