99990640

素因数分解:

$2^4\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1783}}^1$

素因数の和:2497

約数の個数: 40

約数和(自身を含む): 232940448

約数和(自身を除く): 132949808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 701, 1402, 1783, 2804, 3505, 3566, 5608, 7010, 7132, 8915, 11216, 14020, 14264, 17830, 28040, 28528, 35660, 56080, 71320, 142640, 1249883, 2499766, 4999532, 6249415, 9999064, 12498830, 19998128, 24997660, 49995320, 99990640]

約数ペア:

[(1, 99990640), (2, 49995320), (4, 24997660), (5, 19998128), (8, 12498830), (10, 9999064), (16, 6249415), (20, 4999532), (40, 2499766), (80, 1249883), (701, 142640), (1402, 71320), (1783, 56080), (2804, 35660), (3505, 28528), (3566, 28040), (5608, 17830), (7010, 14264), (7132, 14020), (8915, 11216)]