20640631535

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{433}}^1\times {\mathrm{521}}^1\times {\mathrm{631}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 25772100480

約数和(自身を除く): 5131468945

約数列:

[1, 5, 29, 145, 433, 521, 631, 2165, 2605, 3155, 12557, 15109, 18299, 62785, 75545, 91495, 225593, 273223, 328751, 1127965, 1366115, 1643755, 6542197, 7923467, 9533779, 32710985, 39617335, 47668895, 142349183, 711745915, 4128126307, 20640631535]

約数ペア:

[(1, 20640631535), (5, 4128126307), (29, 711745915), (145, 142349183), (433, 47668895), (521, 39617335), (631, 32710985), (2165, 9533779), (2605, 7923467), (3155, 6542197), (12557, 1643755), (15109, 1366115), (18299, 1127965), (62785, 328751), (75545, 273223), (91495, 225593)]