80390220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31159}}^1$

素因数の和:31214

約数の個数: 48

約数和(自身を含む): 230334720

約数和(自身を除く): 149944500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 31159, 62318, 93477, 124636, 155795, 186954, 311590, 373908, 467385, 623180, 934770, 1339837, 1869540, 2679674, 4019511, 5359348, 6699185, 8039022, 13398370, 16078044, 20097555, 26796740, 40195110, 80390220]

約数ペア:

[(1, 80390220), (2, 40195110), (3, 26796740), (4, 20097555), (5, 16078044), (6, 13398370), (10, 8039022), (12, 6699185), (15, 5359348), (20, 4019511), (30, 2679674), (43, 1869540), (60, 1339837), (86, 934770), (129, 623180), (172, 467385), (215, 373908), (258, 311590), (430, 186954), (516, 155795), (645, 124636), (860, 93477), (1290, 62318), (2580, 31159)]