20451240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56809}}^1$

素因数の和:56826

約数の個数: 48

約数和(自身を含む): 66467700

約数和(自身を除く): 46016460

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56809, 113618, 170427, 227236, 284045, 340854, 454472, 511281, 568090, 681708, 852135, 1022562, 1136180, 1363416, 1704270, 2045124, 2272360, 2556405, 3408540, 4090248, 5112810, 6817080, 10225620, 20451240]

約数ペア:

[(1, 20451240), (2, 10225620), (3, 6817080), (4, 5112810), (5, 4090248), (6, 3408540), (8, 2556405), (9, 2272360), (10, 2045124), (12, 1704270), (15, 1363416), (18, 1136180), (20, 1022562), (24, 852135), (30, 681708), (36, 568090), (40, 511281), (45, 454472), (60, 340854), (72, 284045), (90, 227236), (120, 170427), (180, 113618), (360, 56809)]