15508520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3557}}^1$

素因数の和:3677

約数の個数: 32

約数和(自身を含む): 35224200

約数和(自身を除く): 19715680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 3557, 4360, 7114, 14228, 17785, 28456, 35570, 71140, 142280, 387713, 775426, 1550852, 1938565, 3101704, 3877130, 7754260, 15508520]

約数ペア:

[(1, 15508520), (2, 7754260), (4, 3877130), (5, 3101704), (8, 1938565), (10, 1550852), (20, 775426), (40, 387713), (109, 142280), (218, 71140), (436, 35570), (545, 28456), (872, 17785), (1090, 14228), (2180, 7114), (3557, 4360)]