15981580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7331}}^1$

素因数の和:7449

約数の個数: 24

約数和(自身を含む): 33873840

約数和(自身を除く): 17892260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 7331, 14662, 29324, 36655, 73310, 146620, 799079, 1598158, 3196316, 3995395, 7990790, 15981580]

約数ペア:

[(1, 15981580), (2, 7990790), (4, 3995395), (5, 3196316), (10, 1598158), (20, 799079), (109, 146620), (218, 73310), (436, 36655), (545, 29324), (1090, 14662), (2180, 7331)]