20315165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5897}}^1$

素因数の和:5968

約数の個数: 16

約数和(自身を含む): 26753328

約数和(自身を除く): 6438163

約数列:

[1, 5, 13, 53, 65, 265, 689, 3445, 5897, 29485, 76661, 312541, 383305, 1562705, 4063033, 20315165]

約数ペア:

[(1, 20315165), (5, 4063033), (13, 1562705), (53, 383305), (65, 312541), (265, 76661), (689, 29485), (3445, 5897)]