30315920

素因数分解:

$2^4\times 5^1\times {\mathrm{378949}}^1$

素因数の和:378962

約数の個数: 20

約数和(自身を含む): 70484700

約数和(自身を除く): 40168780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 378949, 757898, 1515796, 1894745, 3031592, 3789490, 6063184, 7578980, 15157960, 30315920]

約数ペア:

[(1, 30315920), (2, 15157960), (4, 7578980), (5, 6063184), (8, 3789490), (10, 3031592), (16, 1894745), (20, 1515796), (40, 757898), (80, 378949)]