7880085

素因数分解:

$3^4\times 5^1\times {\mathrm{19457}}^1$

素因数の和:19474

約数の個数: 20

約数和(自身を含む): 14126508

約数和(自身を除く): 6246423

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 19457, 58371, 97285, 175113, 291855, 525339, 875565, 1576017, 2626695, 7880085]

約数ペア:

[(1, 7880085), (3, 2626695), (5, 1576017), (9, 875565), (15, 525339), (27, 291855), (45, 175113), (81, 97285), (135, 58371), (405, 19457)]