19931740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 23533220

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 223, 410, 436, 446, 545, 820, 892, 1090, 1115, 2180, 2230, 4460, 4469, 8938, 9143, 17876, 18286, 22345, 24307, 36572, 44690, 45715, 48614, 89380, 91430, 97228, 121535, 182860, 243070, 486140, 996587, 1993174, 3986348, 4982935, 9965870, 19931740]

約数ペア:

[(1, 19931740), (2, 9965870), (4, 4982935), (5, 3986348), (10, 1993174), (20, 996587), (41, 486140), (82, 243070), (109, 182860), (164, 121535), (205, 97228), (218, 91430), (223, 89380), (410, 48614), (436, 45715), (446, 44690), (545, 36572), (820, 24307), (892, 22345), (1090, 18286), (1115, 17876), (2180, 9143), (2230, 8938), (4460, 4469)]