213262660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{820241}}^1$

素因数の和:820263

約数の個数: 24

約数和(自身を含む): 482302296

約数和(自身を除く): 269039636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 820241, 1640482, 3280964, 4101205, 8202410, 10663133, 16404820, 21326266, 42652532, 53315665, 106631330, 213262660]

約数ペア:

[(1, 213262660), (2, 106631330), (4, 53315665), (5, 42652532), (10, 21326266), (13, 16404820), (20, 10663133), (26, 8202410), (52, 4101205), (65, 3280964), (130, 1640482), (260, 820241)]