258561290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1988933}}^1$

素因数の和:1988953

約数の個数: 16

約数和(自身を含む): 501211368

約数和(自身を除く): 242650078

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1988933, 3977866, 9944665, 19889330, 25856129, 51712258, 129280645, 258561290]

約数ペア:

[(1, 258561290), (2, 129280645), (5, 51712258), (10, 25856129), (13, 19889330), (26, 9944665), (65, 3977866), (130, 1988933)]