22777640

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1831}}^1$

素因数の和:2153

約数の個数: 32

約数和(自身を含む): 51442560

約数和(自身を除く): 28664920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 1831, 2488, 3110, 3662, 6220, 7324, 9155, 12440, 14648, 18310, 36620, 73240, 569441, 1138882, 2277764, 2847205, 4555528, 5694410, 11388820, 22777640]

約数ペア:

[(1, 22777640), (2, 11388820), (4, 5694410), (5, 4555528), (8, 2847205), (10, 2277764), (20, 1138882), (40, 569441), (311, 73240), (622, 36620), (1244, 18310), (1555, 14648), (1831, 12440), (2488, 9155), (3110, 7324), (3662, 6220)]