128906235

素因数分解:

$3^4\times 5^1\times {\mathrm{318287}}^1$

素因数の和:318304

約数の個数: 20

約数和(自身を含む): 231077088

約数和(自身を除く): 102170853

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 318287, 954861, 1591435, 2864583, 4774305, 8593749, 14322915, 25781247, 42968745, 128906235]

約数ペア:

[(1, 128906235), (3, 42968745), (5, 25781247), (9, 14322915), (15, 8593749), (27, 4774305), (45, 2864583), (81, 1591435), (135, 954861), (405, 318287)]