85888180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{87641}}^1$

素因数の和:87664

約数の個数: 36

約数和(自身を含む): 209814948

約数和(自身を除く): 123926768

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 87641, 175282, 350564, 438205, 613487, 876410, 1226974, 1752820, 2453948, 3067435, 4294409, 6134870, 8588818, 12269740, 17177636, 21472045, 42944090, 85888180]

約数ペア:

[(1, 85888180), (2, 42944090), (4, 21472045), (5, 17177636), (7, 12269740), (10, 8588818), (14, 6134870), (20, 4294409), (28, 3067435), (35, 2453948), (49, 1752820), (70, 1226974), (98, 876410), (140, 613487), (196, 438205), (245, 350564), (490, 175282), (980, 87641)]