68640615

素因数分解:

$3^4\times 5^1\times {\mathrm{169483}}^1$

素因数の和:169500

約数の個数: 20

約数和(自身を含む): 123045384

約数和(自身を除く): 54404769

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 169483, 508449, 847415, 1525347, 2542245, 4576041, 7626735, 13728123, 22880205, 68640615]

約数ペア:

[(1, 68640615), (3, 22880205), (5, 13728123), (9, 7626735), (15, 4576041), (27, 2542245), (45, 1525347), (81, 847415), (135, 508449), (405, 169483)]