31274740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 96

約数和(自身を含む): 79027200

約数和(自身を除く): 47752460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 97, 98, 140, 188, 194, 196, 235, 245, 329, 343, 388, 470, 485, 490, 658, 679, 686, 940, 970, 980, 1316, 1358, 1372, 1645, 1715, 1940, 2303, 2716, 3290, 3395, 3430, 4559, 4606, 4753, 6580, 6790, 6860, 9118, 9212, 9506, 11515, 13580, 16121, 18236, 19012, 22795, 23030, 23765, 31913, 32242, 33271, 45590, 46060, 47530, 63826, 64484, 66542, 80605, 91180, 95060, 127652, 133084, 159565, 161210, 166355, 223391, 319130, 322420, 332710, 446782, 638260, 665420, 893564, 1116955, 1563737, 2233910, 3127474, 4467820, 6254948, 7818685, 15637370, 31274740]

約数ペア:

[(1, 31274740), (2, 15637370), (4, 7818685), (5, 6254948), (7, 4467820), (10, 3127474), (14, 2233910), (20, 1563737), (28, 1116955), (35, 893564), (47, 665420), (49, 638260), (70, 446782), (94, 332710), (97, 322420), (98, 319130), (140, 223391), (188, 166355), (194, 161210), (196, 159565), (235, 133084), (245, 127652), (329, 95060), (343, 91180), (388, 80605), (470, 66542), (485, 64484), (490, 63826), (658, 47530), (679, 46060), (686, 45590), (940, 33271), (970, 32242), (980, 31913), (1316, 23765), (1358, 23030), (1372, 22795), (1645, 19012), (1715, 18236), (1940, 16121), (2303, 13580), (2716, 11515), (3290, 9506), (3395, 9212), (3430, 9118), (4559, 6860), (4606, 6790), (4753, 6580)]