215872540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{830279}}^1$

素因数の和:830301

約数の個数: 24

約数和(自身を含む): 488204640

約数和(自身を除く): 272332100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 830279, 1660558, 3321116, 4151395, 8302790, 10793627, 16605580, 21587254, 43174508, 53968135, 107936270, 215872540]

約数ペア:

[(1, 215872540), (2, 107936270), (4, 53968135), (5, 43174508), (10, 21587254), (13, 16605580), (20, 10793627), (26, 8302790), (52, 4151395), (65, 3321116), (130, 1660558), (260, 830279)]