31380140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{12967}}^1$

素因数の和:12998

約数の個数: 36

約数和(自身を含む): 72439248

約数和(自身を除く): 41059108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 12967, 25934, 51868, 64835, 129670, 142637, 259340, 285274, 570548, 713185, 1426370, 1569007, 2852740, 3138014, 6276028, 7845035, 15690070, 31380140]

約数ペア:

[(1, 31380140), (2, 15690070), (4, 7845035), (5, 6276028), (10, 3138014), (11, 2852740), (20, 1569007), (22, 1426370), (44, 713185), (55, 570548), (110, 285274), (121, 259340), (220, 142637), (242, 129670), (484, 64835), (605, 51868), (1210, 25934), (2420, 12967)]