8080120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2557}}^1$

素因数の和:2647

約数の個数: 32

約数和(自身を含む): 18417600

約数和(自身を除く): 10337480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2557, 3160, 5114, 10228, 12785, 20456, 25570, 51140, 102280, 202003, 404006, 808012, 1010015, 1616024, 2020030, 4040060, 8080120]

約数ペア:

[(1, 8080120), (2, 4040060), (4, 2020030), (5, 1616024), (8, 1010015), (10, 808012), (20, 404006), (40, 202003), (79, 102280), (158, 51140), (316, 25570), (395, 20456), (632, 12785), (790, 10228), (1580, 5114), (2557, 3160)]