13678940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{641}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 31709664

約数和(自身を除く): 18030724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 641, 970, 1067, 1282, 1940, 2134, 2564, 3205, 4268, 5335, 6410, 7051, 10670, 12820, 14102, 21340, 28204, 35255, 62177, 70510, 124354, 141020, 248708, 310885, 621770, 683947, 1243540, 1367894, 2735788, 3419735, 6839470, 13678940]

約数ペア:

[(1, 13678940), (2, 6839470), (4, 3419735), (5, 2735788), (10, 1367894), (11, 1243540), (20, 683947), (22, 621770), (44, 310885), (55, 248708), (97, 141020), (110, 124354), (194, 70510), (220, 62177), (388, 35255), (485, 28204), (641, 21340), (970, 14102), (1067, 12820), (1282, 10670), (1940, 7051), (2134, 6410), (2564, 5335), (3205, 4268)]