311640985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1\times {\mathrm{3079}}^1$

素因数の和:3768

約数の個数: 16

約数和(自身を含む): 386749440

約数和(自身を除く): 75108455

約数列:

[1, 5, 31, 155, 653, 3079, 3265, 15395, 20243, 95449, 101215, 477245, 2010587, 10052935, 62328197, 311640985]

約数ペア:

[(1, 311640985), (5, 62328197), (31, 10052935), (155, 2010587), (653, 477245), (3079, 101215), (3265, 95449), (15395, 20243)]