20557550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31627}}^1$

素因数の和:31652

約数の個数: 24

約数和(自身を含む): 41179656

約数和(自身を除く): 20622106

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 31627, 63254, 158135, 316270, 411151, 790675, 822302, 1581350, 2055755, 4111510, 10278775, 20557550]

約数ペア:

[(1, 20557550), (2, 10278775), (5, 4111510), (10, 2055755), (13, 1581350), (25, 822302), (26, 790675), (50, 411151), (65, 316270), (130, 158135), (325, 63254), (650, 31627)]