20013305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6551}}^1$

素因数の和:6616

約数の個数: 16

約数和(自身を含む): 26417664

約数和(自身を除く): 6404359

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6551, 32755, 85163, 307897, 425815, 1539485, 4002661, 20013305]

約数ペア:

[(1, 20013305), (5, 4002661), (13, 1539485), (47, 425815), (65, 307897), (235, 85163), (611, 32755), (3055, 6551)]