211020640

素因数分解:

$2^5\times 5^1\times {\mathrm{1318879}}^1$

素因数の和:1318894

約数の個数: 24

約数和(自身を含む): 498536640

約数和(自身を除く): 287516000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1318879, 2637758, 5275516, 6594395, 10551032, 13188790, 21102064, 26377580, 42204128, 52755160, 105510320, 211020640]

約数ペア:

[(1, 211020640), (2, 105510320), (4, 52755160), (5, 42204128), (8, 26377580), (10, 21102064), (16, 13188790), (20, 10551032), (32, 6594395), (40, 5275516), (80, 2637758), (160, 1318879)]