261588702905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1\times {\mathrm{21149}}^1$

素因数の和:21785

約数の個数: 32

約数和(自身を含む): 326488320000

約数和(自身を除く): 64899617095

約数列:

[1, 5, 31, 155, 199, 401, 995, 2005, 6169, 12431, 21149, 30845, 62155, 79799, 105745, 398995, 655619, 2473769, 3278095, 4208651, 8480749, 12368845, 21043255, 42403745, 130468181, 262903219, 652340905, 1314516095, 1687669051, 8438345255, 52317740581, 261588702905]

約数ペア:

[(1, 261588702905), (5, 52317740581), (31, 8438345255), (155, 1687669051), (199, 1314516095), (401, 652340905), (995, 262903219), (2005, 130468181), (6169, 42403745), (12431, 21043255), (21149, 12368845), (30845, 8480749), (62155, 4208651), (79799, 3278095), (105745, 2473769), (398995, 655619)]