67980015

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21277}}^1$

素因数の和:21359

約数の個数: 24

約数和(自身を含む): 119497248

約数和(自身を除く): 51517233

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 21277, 63831, 106385, 191493, 319155, 957465, 1510667, 4532001, 7553335, 13596003, 22660005, 67980015]

約数ペア:

[(1, 67980015), (3, 22660005), (5, 13596003), (9, 7553335), (15, 4532001), (45, 1510667), (71, 957465), (213, 319155), (355, 191493), (639, 106385), (1065, 63831), (3195, 21277)]