100888720

素因数分解:

$2^4\times 5^1\times {\mathrm{1261109}}^1$

素因数の和:1261122

約数の個数: 20

約数和(自身を含む): 234566460

約数和(自身を除く): 133677740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1261109, 2522218, 5044436, 6305545, 10088872, 12611090, 20177744, 25222180, 50444360, 100888720]

約数ペア:

[(1, 100888720), (2, 50444360), (4, 25222180), (5, 20177744), (8, 12611090), (10, 10088872), (16, 6305545), (20, 5044436), (40, 2522218), (80, 1261109)]