1264005

素因数分解:

$3^4\times 5^1\times {\mathrm{3121}}^1$

素因数の和:3138

約数の個数: 20

約数和(自身を含む): 2266572

約数和(自身を除く): 1002567

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3121, 9363, 15605, 28089, 46815, 84267, 140445, 252801, 421335, 1264005]

約数ペア:

[(1, 1264005), (3, 421335), (5, 252801), (9, 140445), (15, 84267), (27, 46815), (45, 28089), (81, 15605), (135, 9363), (405, 3121)]