31921840

素因数分解:

$2^4\times 5^1\times {\mathrm{399023}}^1$

素因数の和:399036

約数の個数: 20

約数和(自身を含む): 74218464

約数和(自身を除く): 42296624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399023, 798046, 1596092, 1995115, 3192184, 3990230, 6384368, 7980460, 15960920, 31921840]

約数ペア:

[(1, 31921840), (2, 15960920), (4, 7980460), (5, 6384368), (8, 3990230), (10, 3192184), (16, 1995115), (20, 1596092), (40, 798046), (80, 399023)]