20528950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31583}}^1$

素因数の和:31608

約数の個数: 24

約数和(自身を含む): 41122368

約数和(自身を除く): 20593418

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 31583, 63166, 157915, 315830, 410579, 789575, 821158, 1579150, 2052895, 4105790, 10264475, 20528950]

約数ペア:

[(1, 20528950), (2, 10264475), (5, 4105790), (10, 2052895), (13, 1579150), (25, 821158), (26, 789575), (50, 410579), (65, 315830), (130, 157915), (325, 63166), (650, 31583)]