81569215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5783}}^1$

素因数の和:5839

約数の個数: 32

約数和(自身を含む): 124379136

約数和(自身を除く): 42809921

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 2015, 2821, 5783, 14105, 28915, 40481, 75179, 179273, 202405, 375895, 526253, 896365, 1254911, 2330549, 2631265, 6274555, 11652745, 16313843, 81569215]

約数ペア:

[(1, 81569215), (5, 16313843), (7, 11652745), (13, 6274555), (31, 2631265), (35, 2330549), (65, 1254911), (91, 896365), (155, 526253), (217, 375895), (403, 202405), (455, 179273), (1085, 75179), (2015, 40481), (2821, 28915), (5783, 14105)]