64880680

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{34511}}^1$

素因数の和:34569

約数の個数: 32

約数和(自身を含む): 149091840

約数和(自身を除く): 84211160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 34511, 69022, 138044, 172555, 276088, 345110, 690220, 1380440, 1622017, 3244034, 6488068, 8110085, 12976136, 16220170, 32440340, 64880680]

約数ペア:

[(1, 64880680), (2, 32440340), (4, 16220170), (5, 12976136), (8, 8110085), (10, 6488068), (20, 3244034), (40, 1622017), (47, 1380440), (94, 690220), (188, 345110), (235, 276088), (376, 172555), (470, 138044), (940, 69022), (1880, 34511)]