20294950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31223}}^1$

素因数の和:31248

約数の個数: 24

約数和(自身を含む): 40653648

約数和(自身を除く): 20358698

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 31223, 62446, 156115, 312230, 405899, 780575, 811798, 1561150, 2029495, 4058990, 10147475, 20294950]

約数ペア:

[(1, 20294950), (2, 10147475), (5, 4058990), (10, 2029495), (13, 1561150), (25, 811798), (26, 780575), (50, 405899), (65, 312230), (130, 156115), (325, 62446), (650, 31223)]