221556140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{852139}}^1$

素因数の和:852161

約数の個数: 24

約数和(自身を含む): 501058320

約数和(自身を除く): 279502180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 852139, 1704278, 3408556, 4260695, 8521390, 11077807, 17042780, 22155614, 44311228, 55389035, 110778070, 221556140]

約数ペア:

[(1, 221556140), (2, 110778070), (4, 55389035), (5, 44311228), (10, 22155614), (13, 17042780), (20, 11077807), (26, 8521390), (52, 4260695), (65, 3408556), (130, 1704278), (260, 852139)]