187968220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2089}}^1$

素因数の和:2518

約数の個数: 48

約数和(自身を含む): 431877600

約数和(自身を除く): 243909380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 409, 818, 1636, 2045, 2089, 4090, 4178, 4499, 8180, 8356, 8998, 10445, 17996, 20890, 22495, 22979, 41780, 44990, 45958, 89980, 91916, 114895, 229790, 459580, 854401, 1708802, 3417604, 4272005, 8544010, 9398411, 17088020, 18796822, 37593644, 46992055, 93984110, 187968220]

約数ペア:

[(1, 187968220), (2, 93984110), (4, 46992055), (5, 37593644), (10, 18796822), (11, 17088020), (20, 9398411), (22, 8544010), (44, 4272005), (55, 3417604), (110, 1708802), (220, 854401), (409, 459580), (818, 229790), (1636, 114895), (2045, 91916), (2089, 89980), (4090, 45958), (4178, 44990), (4499, 41780), (8180, 22979), (8356, 22495), (8998, 20890), (10445, 17996)]