1916780

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 4052160

約数和(自身を除く): 2135380

約数列:

[1, 2, 4, 5, 10, 20, 239, 401, 478, 802, 956, 1195, 1604, 2005, 2390, 4010, 4780, 8020, 95839, 191678, 383356, 479195, 958390, 1916780]

約数ペア:

[(1, 1916780), (2, 958390), (4, 479195), (5, 383356), (10, 191678), (20, 95839), (239, 8020), (401, 4780), (478, 4010), (802, 2390), (956, 2005), (1195, 1604)]