68118920

素因数分解:

$2^3\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1933}}^1$

素因数の和:2825

約数の個数: 32

約数和(自身を含む): 153520920

約数和(自身を除く): 85402000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 881, 1762, 1933, 3524, 3866, 4405, 7048, 7732, 8810, 9665, 15464, 17620, 19330, 35240, 38660, 77320, 1702973, 3405946, 6811892, 8514865, 13623784, 17029730, 34059460, 68118920]

約数ペア:

[(1, 68118920), (2, 34059460), (4, 17029730), (5, 13623784), (8, 8514865), (10, 6811892), (20, 3405946), (40, 1702973), (881, 77320), (1762, 38660), (1933, 35240), (3524, 19330), (3866, 17620), (4405, 15464), (7048, 9665), (7732, 8810)]