1211375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{881}}^1$

素因数の和:907

約数の個数: 16

約数和(自身を含む): 1651104

約数和(自身を除く): 439729

約数列:

[1, 5, 11, 25, 55, 125, 275, 881, 1375, 4405, 9691, 22025, 48455, 110125, 242275, 1211375]

約数ペア:

[(1, 1211375), (5, 242275), (11, 110125), (25, 48455), (55, 22025), (125, 9691), (275, 4405), (881, 1375)]