1815280

素因数分解:

$2^4\times 5^1\times {\mathrm{22691}}^1$

素因数の和:22704

約数の個数: 20

約数和(自身を含む): 4220712

約数和(自身を除く): 2405432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 22691, 45382, 90764, 113455, 181528, 226910, 363056, 453820, 907640, 1815280]

約数ペア:

[(1, 1815280), (2, 907640), (4, 453820), (5, 363056), (8, 226910), (10, 181528), (16, 113455), (20, 90764), (40, 45382), (80, 22691)]