393245279

素因数分解:

$7^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1\times {\mathrm{1999}}^1$

素因数の和:2342

約数の個数: 16

約数和(自身を含む): 455040000

約数和(自身を除く): 61794721

約数列:

[1, 7, 157, 179, 1099, 1253, 1999, 13993, 28103, 196721, 313843, 357821, 2196901, 2504747, 56177897, 393245279]

約数ペア:

[(1, 393245279), (7, 56177897), (157, 2504747), (179, 2196901), (1099, 357821), (1253, 313843), (1999, 196721), (13993, 28103)]