18194380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1069}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 40985280

約数和(自身を除く): 22790900

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1069, 1702, 2138, 3404, 4255, 4276, 5345, 8510, 10690, 17020, 21380, 24587, 39553, 49174, 79106, 98348, 122935, 158212, 197765, 245870, 395530, 491740, 791060, 909719, 1819438, 3638876, 4548595, 9097190, 18194380]

約数ペア:

[(1, 18194380), (2, 9097190), (4, 4548595), (5, 3638876), (10, 1819438), (20, 909719), (23, 791060), (37, 491740), (46, 395530), (74, 245870), (92, 197765), (115, 158212), (148, 122935), (185, 98348), (230, 79106), (370, 49174), (460, 39553), (740, 24587), (851, 21380), (1069, 17020), (1702, 10690), (2138, 8510), (3404, 5345), (4255, 4276)]