20652040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{12007}}^1$

素因数の和:12061

約数の個数: 32

約数和(自身を含む): 47551680

約数和(自身を除く): 26899640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 12007, 24014, 48028, 60035, 96056, 120070, 240140, 480280, 516301, 1032602, 2065204, 2581505, 4130408, 5163010, 10326020, 20652040]

約数ペア:

[(1, 20652040), (2, 10326020), (4, 5163010), (5, 4130408), (8, 2581505), (10, 2065204), (20, 1032602), (40, 516301), (43, 480280), (86, 240140), (172, 120070), (215, 96056), (344, 60035), (430, 48028), (860, 24014), (1720, 12007)]