285506

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 16

約数和(自身を含む): 470400

約数和(自身を除く): 184894

約数列:

[1, 2, 13, 26, 79, 139, 158, 278, 1027, 1807, 2054, 3614, 10981, 21962, 142753, 285506]

約数ペア:

[(1, 285506), (2, 142753), (13, 21962), (26, 10981), (79, 3614), (139, 2054), (158, 1807), (278, 1027)]