221701840

素因数分解:

$2^4\times 5^1\times {\mathrm{2771273}}^1$

素因数の和:2771286

約数の個数: 20

約数和(自身を含む): 515456964

約数和(自身を除く): 293755124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2771273, 5542546, 11085092, 13856365, 22170184, 27712730, 44340368, 55425460, 110850920, 221701840]

約数ペア:

[(1, 221701840), (2, 110850920), (4, 55425460), (5, 44340368), (8, 27712730), (10, 22170184), (16, 13856365), (20, 11085092), (40, 5542546), (80, 2771273)]