178775780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{8269}}^1$

素因数の和:8348

約数の個数: 48

約数和(自身を含む): 400135680

約数和(自身を除く): 221359900

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 2162, 4324, 5405, 8269, 10810, 16538, 21620, 33076, 41345, 82690, 165380, 190187, 380374, 388643, 760748, 777286, 950935, 1554572, 1901870, 1943215, 3803740, 3886430, 7772860, 8938789, 17877578, 35755156, 44693945, 89387890, 178775780]

約数ペア:

[(1, 178775780), (2, 89387890), (4, 44693945), (5, 35755156), (10, 17877578), (20, 8938789), (23, 7772860), (46, 3886430), (47, 3803740), (92, 1943215), (94, 1901870), (115, 1554572), (188, 950935), (230, 777286), (235, 760748), (460, 388643), (470, 380374), (940, 190187), (1081, 165380), (2162, 82690), (4324, 41345), (5405, 33076), (8269, 21620), (10810, 16538)]