20196777500

素因数分解:

$2^2\times 5^4\times {\mathrm{43}}^1\times {\mathrm{187877}}^1$

素因数の和:187944

約数の個数: 60

約数和(自身を含む): 45193677144

約数和(自身を除く): 24996899644

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 625, 860, 1075, 1250, 2150, 2500, 4300, 5375, 10750, 21500, 26875, 53750, 107500, 187877, 375754, 751508, 939385, 1878770, 3757540, 4696925, 8078711, 9393850, 16157422, 18787700, 23484625, 32314844, 40393555, 46969250, 80787110, 93938500, 117423125, 161574220, 201967775, 234846250, 403935550, 469692500, 807871100, 1009838875, 2019677750, 4039355500, 5049194375, 10098388750, 20196777500]

約数ペア:

[(1, 20196777500), (2, 10098388750), (4, 5049194375), (5, 4039355500), (10, 2019677750), (20, 1009838875), (25, 807871100), (43, 469692500), (50, 403935550), (86, 234846250), (100, 201967775), (125, 161574220), (172, 117423125), (215, 93938500), (250, 80787110), (430, 46969250), (500, 40393555), (625, 32314844), (860, 23484625), (1075, 18787700), (1250, 16157422), (2150, 9393850), (2500, 8078711), (4300, 4696925), (5375, 3757540), (10750, 1878770), (21500, 939385), (26875, 751508), (53750, 375754), (107500, 187877)]