669776

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{1021}}^1$

素因数の和:1070

約数の個数: 20

約数和(自身を含む): 1330644

約数和(自身を除く): 660868

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 1021, 2042, 4084, 8168, 16336, 41861, 83722, 167444, 334888, 669776]

約数ペア:

[(1, 669776), (2, 334888), (4, 167444), (8, 83722), (16, 41861), (41, 16336), (82, 8168), (164, 4084), (328, 2042), (656, 1021)]