51331640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{14419}}^1$

素因数の和:14519

約数の個数: 32

約数和(自身を含む): 116802000

約数和(自身を除く): 65470360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 14419, 28838, 57676, 72095, 115352, 144190, 288380, 576760, 1283291, 2566582, 5133164, 6416455, 10266328, 12832910, 25665820, 51331640]

約数ペア:

[(1, 51331640), (2, 25665820), (4, 12832910), (5, 10266328), (8, 6416455), (10, 5133164), (20, 2566582), (40, 1283291), (89, 576760), (178, 288380), (356, 144190), (445, 115352), (712, 72095), (890, 57676), (1780, 28838), (3560, 14419)]