1209805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 1577664

約数和(自身を除く): 367859

約数列:

[1, 5, 17, 43, 85, 215, 331, 731, 1655, 3655, 5627, 14233, 28135, 71165, 241961, 1209805]

約数ペア:

[(1, 1209805), (5, 241961), (17, 71165), (43, 28135), (85, 14233), (215, 5627), (331, 3655), (731, 1655)]