17520140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{821}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 40600224

約数和(自身を除く): 23080084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 821, 970, 1067, 1642, 1940, 2134, 3284, 4105, 4268, 5335, 8210, 9031, 10670, 16420, 18062, 21340, 36124, 45155, 79637, 90310, 159274, 180620, 318548, 398185, 796370, 876007, 1592740, 1752014, 3504028, 4380035, 8760070, 17520140]

約数ペア:

[(1, 17520140), (2, 8760070), (4, 4380035), (5, 3504028), (10, 1752014), (11, 1592740), (20, 876007), (22, 796370), (44, 398185), (55, 318548), (97, 180620), (110, 159274), (194, 90310), (220, 79637), (388, 45155), (485, 36124), (821, 21340), (970, 18062), (1067, 16420), (1642, 10670), (1940, 9031), (2134, 8210), (3284, 5335), (4105, 4268)]