201988460

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{42257}}^1$

素因数の和:42505

約数の個数: 24

約数和(自身を含む): 425960640

約数和(自身を除く): 223972180

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 42257, 84514, 169028, 211285, 422570, 845140, 10099423, 20198846, 40397692, 50497115, 100994230, 201988460]

約数ペア:

[(1, 201988460), (2, 100994230), (4, 50497115), (5, 40397692), (10, 20198846), (20, 10099423), (239, 845140), (478, 422570), (956, 211285), (1195, 169028), (2390, 84514), (4780, 42257)]