20446840

素因数分解:

$2^3\times 5^1\times {\mathrm{511171}}^1$

素因数の和:511182

約数の個数: 16

約数和(自身を含む): 46005480

約数和(自身を除く): 25558640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 511171, 1022342, 2044684, 2555855, 4089368, 5111710, 10223420, 20446840]

約数ペア:

[(1, 20446840), (2, 10223420), (4, 5111710), (5, 4089368), (8, 2555855), (10, 2044684), (20, 1022342), (40, 511171)]