81582820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{3823}}^1$

素因数の和:3940

約数の個数: 48

約数和(自身を含む): 188875008

約数和(自身を除く): 107292188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 970, 1067, 1940, 2134, 3823, 4268, 5335, 7646, 10670, 15292, 19115, 21340, 38230, 42053, 76460, 84106, 168212, 210265, 370831, 420530, 741662, 841060, 1483324, 1854155, 3708310, 4079141, 7416620, 8158282, 16316564, 20395705, 40791410, 81582820]

約数ペア:

[(1, 81582820), (2, 40791410), (4, 20395705), (5, 16316564), (10, 8158282), (11, 7416620), (20, 4079141), (22, 3708310), (44, 1854155), (55, 1483324), (97, 841060), (110, 741662), (194, 420530), (220, 370831), (388, 210265), (485, 168212), (970, 84106), (1067, 76460), (1940, 42053), (2134, 38230), (3823, 21340), (4268, 19115), (5335, 15292), (7646, 10670)]