321492040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{51193}}^1$

素因数の和:51361

約数の個数: 32

約数和(自身を含む): 727978680

約数和(自身を除く): 406486640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 51193, 102386, 204772, 255965, 409544, 511930, 1023860, 2047720, 8037301, 16074602, 32149204, 40186505, 64298408, 80373010, 160746020, 321492040]

約数ペア:

[(1, 321492040), (2, 160746020), (4, 80373010), (5, 64298408), (8, 40186505), (10, 32149204), (20, 16074602), (40, 8037301), (157, 2047720), (314, 1023860), (628, 511930), (785, 409544), (1256, 255965), (1570, 204772), (3140, 102386), (6280, 51193)]