19997383870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{327343}}^1$

素因数の和:327540

約数の個数: 32

約数和(自身を含む): 37120809600

約数和(自身を除く): 17123425730

約数列:

[1, 2, 5, 10, 41, 82, 149, 205, 298, 410, 745, 1490, 6109, 12218, 30545, 61090, 327343, 654686, 1636715, 3273430, 13421063, 26842126, 48774107, 67105315, 97548214, 134210630, 243870535, 487741070, 1999738387, 3999476774, 9998691935, 19997383870]

約数ペア:

[(1, 19997383870), (2, 9998691935), (5, 3999476774), (10, 1999738387), (41, 487741070), (82, 243870535), (149, 134210630), (205, 97548214), (298, 67105315), (410, 48774107), (745, 26842126), (1490, 13421063), (6109, 3273430), (12218, 1636715), (30545, 654686), (61090, 327343)]