8205520

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{941}}^1$

素因数の和:1063

約数の個数: 40

約数和(自身を含む): 19273320

約数和(自身を除く): 11067800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 941, 1090, 1744, 1882, 2180, 3764, 4360, 4705, 7528, 8720, 9410, 15056, 18820, 37640, 75280, 102569, 205138, 410276, 512845, 820552, 1025690, 1641104, 2051380, 4102760, 8205520]

約数ペア:

[(1, 8205520), (2, 4102760), (4, 2051380), (5, 1641104), (8, 1025690), (10, 820552), (16, 512845), (20, 410276), (40, 205138), (80, 102569), (109, 75280), (218, 37640), (436, 18820), (545, 15056), (872, 9410), (941, 8720), (1090, 7528), (1744, 4705), (1882, 4360), (2180, 3764)]