51398840

素因数分解:

$2^3\times 5^1\times {\mathrm{1284971}}^1$

素因数の和:1284982

約数の個数: 16

約数和(自身を含む): 115647480

約数和(自身を除く): 64248640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1284971, 2569942, 5139884, 6424855, 10279768, 12849710, 25699420, 51398840]

約数ペア:

[(1, 51398840), (2, 25699420), (4, 12849710), (5, 10279768), (8, 6424855), (10, 5139884), (20, 2569942), (40, 1284971)]