20363080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11839}}^1$

素因数の和:11893

約数の個数: 32

約数和(自身を含む): 46886400

約数和(自身を除く): 26523320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11839, 23678, 47356, 59195, 94712, 118390, 236780, 473560, 509077, 1018154, 2036308, 2545385, 4072616, 5090770, 10181540, 20363080]

約数ペア:

[(1, 20363080), (2, 10181540), (4, 5090770), (5, 4072616), (8, 2545385), (10, 2036308), (20, 1018154), (40, 509077), (43, 473560), (86, 236780), (172, 118390), (215, 94712), (344, 59195), (430, 47356), (860, 23678), (1720, 11839)]