25505020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 56060928

約数和(自身を除く): 30555908

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 631, 860, 940, 1262, 2021, 2524, 3155, 4042, 6310, 8084, 10105, 12620, 20210, 27133, 29657, 40420, 54266, 59314, 108532, 118628, 135665, 148285, 271330, 296570, 542660, 593140, 1275251, 2550502, 5101004, 6376255, 12752510, 25505020]

約数ペア:

[(1, 25505020), (2, 12752510), (4, 6376255), (5, 5101004), (10, 2550502), (20, 1275251), (43, 593140), (47, 542660), (86, 296570), (94, 271330), (172, 148285), (188, 135665), (215, 118628), (235, 108532), (430, 59314), (470, 54266), (631, 40420), (860, 29657), (940, 27133), (1262, 20210), (2021, 12620), (2524, 10105), (3155, 8084), (4042, 6310)]