90280001

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{1979}}^1$

素因数の和:2026

約数の個数: 20

約数和(自身を含む): 110919600

約数和(自身を除く): 20639599

約数列:

[1, 7, 19, 49, 133, 343, 931, 1979, 2401, 6517, 13853, 37601, 45619, 96971, 263207, 678797, 1842449, 4751579, 12897143, 90280001]

約数ペア:

[(1, 90280001), (7, 12897143), (19, 4751579), (49, 1842449), (133, 678797), (343, 263207), (931, 96971), (1979, 45619), (2401, 37601), (6517, 13853)]