221037460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1578839}}^1$

素因数の和:1578855

約数の個数: 24

約数和(自身を含む): 530490240

約数和(自身を除く): 309452780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1578839, 3157678, 6315356, 7894195, 11051873, 15788390, 22103746, 31576780, 44207492, 55259365, 110518730, 221037460]

約数ペア:

[(1, 221037460), (2, 110518730), (4, 55259365), (5, 44207492), (7, 31576780), (10, 22103746), (14, 15788390), (20, 11051873), (28, 7894195), (35, 6315356), (70, 3157678), (140, 1578839)]