12760646980

素因数分解:

$2^2\times 5^1\times {\mathrm{638032349}}^1$

素因数の和:638032358

約数の個数: 12

約数和(自身を含む): 26797358700

約数和(自身を除く): 14036711720

約数列:

[1, 2, 4, 5, 10, 20, 638032349, 1276064698, 2552129396, 3190161745, 6380323490, 12760646980]

約数ペア:

[(1, 12760646980), (2, 6380323490), (4, 3190161745), (5, 2552129396), (10, 1276064698), (20, 638032349)]