912980

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:439

約数の個数: 24

約数和(自身を含む): 1935360

約数和(自身を除く): 1022380

約数列:

[1, 2, 4, 5, 10, 20, 191, 239, 382, 478, 764, 955, 956, 1195, 1910, 2390, 3820, 4780, 45649, 91298, 182596, 228245, 456490, 912980]

約数ペア:

[(1, 912980), (2, 456490), (4, 228245), (5, 182596), (10, 91298), (20, 45649), (191, 4780), (239, 3820), (382, 2390), (478, 1910), (764, 1195), (955, 956)]