289420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 630000

約数和(自身を除く): 340580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 499, 580, 998, 1996, 2495, 4990, 9980, 14471, 28942, 57884, 72355, 144710, 289420]

約数ペア:

[(1, 289420), (2, 144710), (4, 72355), (5, 57884), (10, 28942), (20, 14471), (29, 9980), (58, 4990), (116, 2495), (145, 1996), (290, 998), (499, 580)]