1325428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 2540160

約数和(自身を除く): 1214732

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 359, 718, 923, 1436, 1846, 3692, 4667, 9334, 18668, 25489, 50978, 101956, 331357, 662714, 1325428]

約数ペア:

[(1, 1325428), (2, 662714), (4, 331357), (13, 101956), (26, 50978), (52, 25489), (71, 18668), (142, 9334), (284, 4667), (359, 3692), (718, 1846), (923, 1436)]