1489820

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 3154704

約数和(自身を除く): 1664884

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 457, 652, 815, 914, 1630, 1828, 2285, 3260, 4570, 9140, 74491, 148982, 297964, 372455, 744910, 1489820]

約数ペア:

[(1, 1489820), (2, 744910), (4, 372455), (5, 297964), (10, 148982), (20, 74491), (163, 9140), (326, 4570), (457, 3260), (652, 2285), (815, 1828), (914, 1630)]