244537640

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{12451}}^1$

素因数の和:12953

約数の個数: 32

約数和(自身を含む): 551374560

約数和(自身を除く): 306836920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 12451, 19640, 24902, 49804, 62255, 99608, 124510, 249020, 498040, 6113441, 12226882, 24453764, 30567205, 48907528, 61134410, 122268820, 244537640]

約数ペア:

[(1, 244537640), (2, 122268820), (4, 61134410), (5, 48907528), (8, 30567205), (10, 24453764), (20, 12226882), (40, 6113441), (491, 498040), (982, 249020), (1964, 124510), (2455, 99608), (3928, 62255), (4910, 49804), (9820, 24902), (12451, 19640)]