212820620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{625943}}^1$

素因数の和:625969

約数の個数: 24

約数和(自身を含む): 473213664

約数和(自身を除く): 260393044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 625943, 1251886, 2503772, 3129715, 6259430, 10641031, 12518860, 21282062, 42564124, 53205155, 106410310, 212820620]

約数ペア:

[(1, 212820620), (2, 106410310), (4, 53205155), (5, 42564124), (10, 21282062), (17, 12518860), (20, 10641031), (34, 6259430), (68, 3129715), (85, 2503772), (170, 1251886), (340, 625943)]