20907790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6473}}^1$

素因数の和:6516

約数の個数: 32

約数和(自身を含む): 41951520

約数和(自身を除く): 21043730

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 6473, 12946, 32365, 64730, 110041, 122987, 220082, 245974, 550205, 614935, 1100410, 1229870, 2090779, 4181558, 10453895, 20907790]

約数ペア:

[(1, 20907790), (2, 10453895), (5, 4181558), (10, 2090779), (17, 1229870), (19, 1100410), (34, 614935), (38, 550205), (85, 245974), (95, 220082), (170, 122987), (190, 110041), (323, 64730), (646, 32365), (1615, 12946), (3230, 6473)]