686668

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 24

約数和(自身を含む): 1270080

約数和(自身を除く): 583412

約数列:

[1, 2, 4, 41, 53, 79, 82, 106, 158, 164, 212, 316, 2173, 3239, 4187, 4346, 6478, 8374, 8692, 12956, 16748, 171667, 343334, 686668]

約数ペア:

[(1, 686668), (2, 343334), (4, 171667), (41, 16748), (53, 12956), (79, 8692), (82, 8374), (106, 6478), (158, 4346), (164, 4187), (212, 3239), (316, 2173)]