20401918210

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14677639}}^1$

素因数の和:14677785

約数の個数: 16

約数和(自身を含む): 36987652800

約数和(自身を除く): 16585734590

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 14677639, 29355278, 73388195, 146776390, 2040191821, 4080383642, 10200959105, 20401918210]

約数ペア:

[(1, 20401918210), (2, 10200959105), (5, 4080383642), (10, 2040191821), (139, 146776390), (278, 73388195), (695, 29355278), (1390, 14677639)]