20595880

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4999}}^1$

素因数の和:5113

約数の個数: 32

約数和(自身を含む): 46800000

約数和(自身を除く): 26204120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4999, 9998, 19996, 24995, 39992, 49990, 99980, 199960, 514897, 1029794, 2059588, 2574485, 4119176, 5148970, 10297940, 20595880]

約数ペア:

[(1, 20595880), (2, 10297940), (4, 5148970), (5, 4119176), (8, 2574485), (10, 2059588), (20, 1029794), (40, 514897), (103, 199960), (206, 99980), (412, 49990), (515, 39992), (824, 24995), (1030, 19996), (2060, 9998), (4120, 4999)]