268762040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{156257}}^1$

素因数の和:156311

約数の個数: 32

約数和(自身を含む): 618781680

約数和(自身を除く): 350019640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 156257, 312514, 625028, 781285, 1250056, 1562570, 3125140, 6250280, 6719051, 13438102, 26876204, 33595255, 53752408, 67190510, 134381020, 268762040]

約数ペア:

[(1, 268762040), (2, 134381020), (4, 67190510), (5, 53752408), (8, 33595255), (10, 26876204), (20, 13438102), (40, 6719051), (43, 6250280), (86, 3125140), (172, 1562570), (215, 1250056), (344, 781285), (430, 625028), (860, 312514), (1720, 156257)]