2018979080

素因数分解:

$2^3\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{23357}}^1$

素因数の和:25529

約数の個数: 32

約数和(自身を含む): 4544999640

約数和(自身を除く): 2526020560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2161, 4322, 8644, 10805, 17288, 21610, 23357, 43220, 46714, 86440, 93428, 116785, 186856, 233570, 467140, 934280, 50474477, 100948954, 201897908, 252372385, 403795816, 504744770, 1009489540, 2018979080]

約数ペア:

[(1, 2018979080), (2, 1009489540), (4, 504744770), (5, 403795816), (8, 252372385), (10, 201897908), (20, 100948954), (40, 50474477), (2161, 934280), (4322, 467140), (8644, 233570), (10805, 186856), (17288, 116785), (21610, 93428), (23357, 86440), (43220, 46714)]