51041840

素因数分解:

$2^4\times 5^1\times {\mathrm{638023}}^1$

素因数の和:638036

約数の個数: 20

約数和(自身を含む): 118672464

約数和(自身を除く): 67630624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 638023, 1276046, 2552092, 3190115, 5104184, 6380230, 10208368, 12760460, 25520920, 51041840]

約数ペア:

[(1, 51041840), (2, 25520920), (4, 12760460), (5, 10208368), (8, 6380230), (10, 5104184), (16, 3190115), (20, 2552092), (40, 1276046), (80, 638023)]