678294

素因数分解:

$2^1\times 3^4\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 40

約数和(自身を含む): 1568160

約数和(自身を除く): 889866

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 79, 81, 106, 158, 159, 162, 237, 318, 474, 477, 711, 954, 1422, 1431, 2133, 2862, 4187, 4266, 4293, 6399, 8374, 8586, 12561, 12798, 25122, 37683, 75366, 113049, 226098, 339147, 678294]

約数ペア:

[(1, 678294), (2, 339147), (3, 226098), (6, 113049), (9, 75366), (18, 37683), (27, 25122), (53, 12798), (54, 12561), (79, 8586), (81, 8374), (106, 6399), (158, 4293), (159, 4266), (162, 4187), (237, 2862), (318, 2133), (474, 1431), (477, 1422), (711, 954)]