256220739

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{31319}}^1$

素因数の和:31432

約数の個数: 20

約数和(自身を含む): 386551440

約数和(自身を除く): 130330701

約数列:

[1, 3, 9, 27, 81, 101, 303, 909, 2727, 8181, 31319, 93957, 281871, 845613, 2536839, 3163219, 9489657, 28468971, 85406913, 256220739]

約数ペア:

[(1, 256220739), (3, 85406913), (9, 28468971), (27, 9489657), (81, 3163219), (101, 2536839), (303, 845613), (909, 281871), (2727, 93957), (8181, 31319)]