157204420

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{6427}}^1$

素因数の和:7659

約数の個数: 24

約数和(自身を含む): 330450624

約数和(自身を除く): 173246204

約数列:

[1, 2, 4, 5, 10, 20, 1223, 2446, 4892, 6115, 6427, 12230, 12854, 24460, 25708, 32135, 64270, 128540, 7860221, 15720442, 31440884, 39301105, 78602210, 157204420]

約数ペア:

[(1, 157204420), (2, 78602210), (4, 39301105), (5, 31440884), (10, 15720442), (20, 7860221), (1223, 128540), (2446, 64270), (4892, 32135), (6115, 25708), (6427, 24460), (12230, 12854)]