81641545

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{2539}}^1$

素因数の和:2712

約数の個数: 16

約数和(自身を含む): 100584000

約数和(自身を除く): 18942455

約数列:

[1, 5, 59, 109, 295, 545, 2539, 6431, 12695, 32155, 149801, 276751, 749005, 1383755, 16328309, 81641545]

約数ペア:

[(1, 81641545), (5, 16328309), (59, 1383755), (109, 749005), (295, 276751), (545, 149801), (2539, 32155), (6431, 12695)]