8888440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20201}}^1$

素因数の和:20223

約数の個数: 32

約数和(自身を含む): 21818160

約数和(自身を除く): 12929720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 20201, 40402, 80804, 101005, 161608, 202010, 222211, 404020, 444422, 808040, 888844, 1111055, 1777688, 2222110, 4444220, 8888440]

約数ペア:

[(1, 8888440), (2, 4444220), (4, 2222110), (5, 1777688), (8, 1111055), (10, 888844), (11, 808040), (20, 444422), (22, 404020), (40, 222211), (44, 202010), (55, 161608), (88, 101005), (110, 80804), (220, 40402), (440, 20201)]