1278765

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 2242968

約数和(自身を除く): 964203

約数列:

[1, 3, 5, 9, 15, 45, 157, 181, 471, 543, 785, 905, 1413, 1629, 2355, 2715, 7065, 8145, 28417, 85251, 142085, 255753, 426255, 1278765]

約数ペア:

[(1, 1278765), (3, 426255), (5, 255753), (9, 142085), (15, 85251), (45, 28417), (157, 8145), (181, 7065), (471, 2715), (543, 2355), (785, 1629), (905, 1413)]