19163780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 45964800

約数和(自身を除く): 26801020

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 37, 38, 47, 58, 74, 76, 94, 95, 116, 145, 148, 185, 188, 190, 235, 290, 370, 380, 470, 551, 580, 703, 740, 893, 940, 1073, 1102, 1363, 1406, 1739, 1786, 2146, 2204, 2726, 2755, 2812, 3478, 3515, 3572, 4292, 4465, 5365, 5452, 5510, 6815, 6956, 7030, 8695, 8930, 10730, 11020, 13630, 14060, 17390, 17860, 20387, 21460, 25897, 27260, 33041, 34780, 40774, 50431, 51794, 66082, 81548, 100862, 101935, 103588, 129485, 132164, 165205, 201724, 203870, 252155, 258970, 330410, 407740, 504310, 517940, 660820, 958189, 1008620, 1916378, 3832756, 4790945, 9581890, 19163780]

約数ペア:

[(1, 19163780), (2, 9581890), (4, 4790945), (5, 3832756), (10, 1916378), (19, 1008620), (20, 958189), (29, 660820), (37, 517940), (38, 504310), (47, 407740), (58, 330410), (74, 258970), (76, 252155), (94, 203870), (95, 201724), (116, 165205), (145, 132164), (148, 129485), (185, 103588), (188, 101935), (190, 100862), (235, 81548), (290, 66082), (370, 51794), (380, 50431), (470, 40774), (551, 34780), (580, 33041), (703, 27260), (740, 25897), (893, 21460), (940, 20387), (1073, 17860), (1102, 17390), (1363, 14060), (1406, 13630), (1739, 11020), (1786, 10730), (2146, 8930), (2204, 8695), (2726, 7030), (2755, 6956), (2812, 6815), (3478, 5510), (3515, 5452), (3572, 5365), (4292, 4465)]