20007475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 26518640

約数和(自身を除く): 6511165

約数列:

[1, 5, 19, 25, 73, 95, 365, 475, 577, 1387, 1825, 2885, 6935, 10963, 14425, 34675, 42121, 54815, 210605, 274075, 800299, 1053025, 4001495, 20007475]

約数ペア:

[(1, 20007475), (5, 4001495), (19, 1053025), (25, 800299), (73, 274075), (95, 210605), (365, 54815), (475, 42121), (577, 34675), (1387, 14425), (1825, 10963), (2885, 6935)]