28284020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61487}}^1$

素因数の和:61519

約数の個数: 24

約数和(自身を含む): 61979904

約数和(自身を除く): 33695884

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 61487, 122974, 245948, 307435, 614870, 1229740, 1414201, 2828402, 5656804, 7071005, 14142010, 28284020]

約数ペア:

[(1, 28284020), (2, 14142010), (4, 7071005), (5, 5656804), (10, 2828402), (20, 1414201), (23, 1229740), (46, 614870), (92, 307435), (115, 245948), (230, 122974), (460, 61487)]