249615

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^2$

素因数の和:100

約数の個数: 24

約数和(自身を含む): 454320

約数和(自身を除く): 204705

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1849, 1935, 5547, 5805, 9245, 16641, 27735, 49923, 83205, 249615]

約数ペア:

[(1, 249615), (3, 83205), (5, 49923), (9, 27735), (15, 16641), (27, 9245), (43, 5805), (45, 5547), (129, 1935), (135, 1849), (215, 1161), (387, 645)]