65442980

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{13691}}^1$

素因数の和:13939

約数の個数: 24

約数和(自身を含む): 138015360

約数和(自身を除く): 72572380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 13691, 27382, 54764, 68455, 136910, 273820, 3272149, 6544298, 13088596, 16360745, 32721490, 65442980]

約数ペア:

[(1, 65442980), (2, 32721490), (4, 16360745), (5, 13088596), (10, 6544298), (20, 3272149), (239, 273820), (478, 136910), (956, 68455), (1195, 54764), (2390, 27382), (4780, 13691)]