20309580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{112831}}^1$

素因数の和:112846

約数の個数: 36

約数和(自身を含む): 61606272

約数和(自身を除く): 41296692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 112831, 225662, 338493, 451324, 564155, 676986, 1015479, 1128310, 1353972, 1692465, 2030958, 2256620, 3384930, 4061916, 5077395, 6769860, 10154790, 20309580]

約数ペア:

[(1, 20309580), (2, 10154790), (3, 6769860), (4, 5077395), (5, 4061916), (6, 3384930), (9, 2256620), (10, 2030958), (12, 1692465), (15, 1353972), (18, 1128310), (20, 1015479), (30, 676986), (36, 564155), (45, 451324), (60, 338493), (90, 225662), (180, 112831)]