827381320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{667243}}^1$

素因数の和:667285

約数の個数: 32

約数和(自身を含む): 1921662720

約数和(自身を除く): 1094281400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 667243, 1334486, 2668972, 3336215, 5337944, 6672430, 13344860, 20684533, 26689720, 41369066, 82738132, 103422665, 165476264, 206845330, 413690660, 827381320]

約数ペア:

[(1, 827381320), (2, 413690660), (4, 206845330), (5, 165476264), (8, 103422665), (10, 82738132), (20, 41369066), (31, 26689720), (40, 20684533), (62, 13344860), (124, 6672430), (155, 5337944), (248, 3336215), (310, 2668972), (620, 1334486), (1240, 667243)]