20780190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{230891}}^1$

素因数の和:230904

約数の個数: 24

約数和(自身を含む): 54028728

約数和(自身を除く): 33248538

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 230891, 461782, 692673, 1154455, 1385346, 2078019, 2308910, 3463365, 4156038, 6926730, 10390095, 20780190]

約数ペア:

[(1, 20780190), (2, 10390095), (3, 6926730), (5, 4156038), (6, 3463365), (9, 2308910), (10, 2078019), (15, 1385346), (18, 1154455), (30, 692673), (45, 461782), (90, 230891)]