85840720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{153287}}^1$

素因数の和:153307

約数の個数: 40

約数和(自身を含む): 228092544

約数和(自身を除く): 142251824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 153287, 306574, 613148, 766435, 1073009, 1226296, 1532870, 2146018, 2452592, 3065740, 4292036, 5365045, 6131480, 8584072, 10730090, 12262960, 17168144, 21460180, 42920360, 85840720]

約数ペア:

[(1, 85840720), (2, 42920360), (4, 21460180), (5, 17168144), (7, 12262960), (8, 10730090), (10, 8584072), (14, 6131480), (16, 5365045), (20, 4292036), (28, 3065740), (35, 2452592), (40, 2146018), (56, 1532870), (70, 1226296), (80, 1073009), (112, 766435), (140, 613148), (280, 306574), (560, 153287)]