20579195

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1459}}^1$

素因数の和:1515

約数の個数: 32

約数和(自身を含む): 31395840

約数和(自身を除く): 10816645

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 1459, 2015, 2821, 7295, 10213, 14105, 18967, 45229, 51065, 94835, 132769, 226145, 316603, 587977, 663845, 1583015, 2939885, 4115839, 20579195]

約数ペア:

[(1, 20579195), (5, 4115839), (7, 2939885), (13, 1583015), (31, 663845), (35, 587977), (65, 316603), (91, 226145), (155, 132769), (217, 94835), (403, 51065), (455, 45229), (1085, 18967), (1459, 14105), (2015, 10213), (2821, 7295)]