128662850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1127

約数の個数: 48

約数和(自身を含む): 250597800

約数和(自身を除く): 121934950

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 89, 145, 178, 290, 445, 725, 890, 997, 1450, 1994, 2225, 2581, 4450, 4985, 5162, 9970, 12905, 24925, 25810, 28913, 49850, 57826, 64525, 88733, 129050, 144565, 177466, 289130, 443665, 722825, 887330, 1445650, 2218325, 2573257, 4436650, 5146514, 12866285, 25732570, 64331425, 128662850]

約数ペア:

[(1, 128662850), (2, 64331425), (5, 25732570), (10, 12866285), (25, 5146514), (29, 4436650), (50, 2573257), (58, 2218325), (89, 1445650), (145, 887330), (178, 722825), (290, 443665), (445, 289130), (725, 177466), (890, 144565), (997, 129050), (1450, 88733), (1994, 64525), (2225, 57826), (2581, 49850), (4450, 28913), (4985, 25810), (5162, 24925), (9970, 12905)]