18788015

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2579}}^1$

素因数の和:2662

約数の個数: 16

約数和(自身を含む): 23777280

約数和(自身を除く): 4989265

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2579, 7285, 12895, 79949, 121213, 399745, 606065, 3757603, 18788015]

約数ペア:

[(1, 18788015), (5, 3757603), (31, 606065), (47, 399745), (155, 121213), (235, 79949), (1457, 12895), (2579, 7285)]