12758920

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1039}}^1$

素因数の和:1357

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 16069880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1039, 1228, 1535, 2078, 2456, 3070, 4156, 5195, 6140, 8312, 10390, 12280, 20780, 41560, 318973, 637946, 1275892, 1594865, 2551784, 3189730, 6379460, 12758920]

約数ペア:

[(1, 12758920), (2, 6379460), (4, 3189730), (5, 2551784), (8, 1594865), (10, 1275892), (20, 637946), (40, 318973), (307, 41560), (614, 20780), (1039, 12280), (1228, 10390), (1535, 8312), (2078, 6140), (2456, 5195), (3070, 4156)]