331317220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1274297}}^1$

素因数の和:1274319

約数の個数: 24

約数和(自身を含む): 749287224

約数和(自身を除く): 417970004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1274297, 2548594, 5097188, 6371485, 12742970, 16565861, 25485940, 33131722, 66263444, 82829305, 165658610, 331317220]

約数ペア:

[(1, 331317220), (2, 165658610), (4, 82829305), (5, 66263444), (10, 33131722), (13, 25485940), (20, 16565861), (26, 12742970), (52, 6371485), (65, 5097188), (130, 2548594), (260, 1274297)]