248520307

素因数分解:

$7^4\times {\mathrm{89}}^1\times {\mathrm{1163}}^1$

素因数の和:1280

約数の個数: 20

約数和(自身を含む): 293432760

約数和(自身を除く): 44912453

約数列:

[1, 7, 49, 89, 343, 623, 1163, 2401, 4361, 8141, 30527, 56987, 103507, 213689, 398909, 724549, 2792363, 5071843, 35502901, 248520307]

約数ペア:

[(1, 248520307), (7, 35502901), (49, 5071843), (89, 2792363), (343, 724549), (623, 398909), (1163, 213689), (2401, 103507), (4361, 56987), (8141, 30527)]