20122475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{419}}^1$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 26717040

約数和(自身を除く): 6594565

約数列:

[1, 5, 17, 25, 85, 113, 419, 425, 565, 1921, 2095, 2825, 7123, 9605, 10475, 35615, 47347, 48025, 178075, 236735, 804899, 1183675, 4024495, 20122475]

約数ペア:

[(1, 20122475), (5, 4024495), (17, 1183675), (25, 804899), (85, 236735), (113, 178075), (419, 48025), (425, 47347), (565, 35615), (1921, 10475), (2095, 9605), (2825, 7123)]