55346920

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3557}}^1$

素因数の和:3957

約数の個数: 32

約数和(自身を含む): 124885800

約数和(自身を除く): 69538880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3557, 3890, 7114, 7780, 14228, 15560, 17785, 28456, 35570, 71140, 142280, 1383673, 2767346, 5534692, 6918365, 11069384, 13836730, 27673460, 55346920]

約数ペア:

[(1, 55346920), (2, 27673460), (4, 13836730), (5, 11069384), (8, 6918365), (10, 5534692), (20, 2767346), (40, 1383673), (389, 142280), (778, 71140), (1556, 35570), (1945, 28456), (3112, 17785), (3557, 15560), (3890, 14228), (7114, 7780)]