68545720

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{2113}}^1$

素因数の和:2935

約数の個数: 32

約数和(自身を含む): 154491120

約数和(自身を除く): 85945400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 2113, 3244, 4055, 4226, 6488, 8110, 8452, 10565, 16220, 16904, 21130, 32440, 42260, 84520, 1713643, 3427286, 6854572, 8568215, 13709144, 17136430, 34272860, 68545720]

約数ペア:

[(1, 68545720), (2, 34272860), (4, 17136430), (5, 13709144), (8, 8568215), (10, 6854572), (20, 3427286), (40, 1713643), (811, 84520), (1622, 42260), (2113, 32440), (3244, 21130), (4055, 16904), (4226, 16220), (6488, 10565), (8110, 8452)]