15721804220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{18059}}^1$

素因数の和:18195

約数の個数: 96

約数和(自身を含む): 36408960000

約数和(自身を除く): 20687155780

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 79, 95, 116, 145, 158, 190, 290, 316, 380, 395, 551, 580, 790, 1102, 1501, 1580, 2204, 2291, 2755, 3002, 4582, 5510, 6004, 7505, 9164, 11020, 11455, 15010, 18059, 22910, 30020, 36118, 43529, 45820, 72236, 87058, 90295, 174116, 180590, 217645, 343121, 361180, 435290, 523711, 686242, 870580, 1047422, 1372484, 1426661, 1715605, 2094844, 2618555, 2853322, 3431210, 5237110, 5706644, 6862420, 7133305, 9950509, 10474220, 14266610, 19901018, 27106559, 28533220, 39802036, 41373169, 49752545, 54213118, 82746338, 99505090, 108426236, 135532795, 165492676, 199010180, 206865845, 271065590, 413731690, 542131180, 786090211, 827463380, 1572180422, 3144360844, 3930451055, 7860902110, 15721804220]

約数ペア:

[(1, 15721804220), (2, 7860902110), (4, 3930451055), (5, 3144360844), (10, 1572180422), (19, 827463380), (20, 786090211), (29, 542131180), (38, 413731690), (58, 271065590), (76, 206865845), (79, 199010180), (95, 165492676), (116, 135532795), (145, 108426236), (158, 99505090), (190, 82746338), (290, 54213118), (316, 49752545), (380, 41373169), (395, 39802036), (551, 28533220), (580, 27106559), (790, 19901018), (1102, 14266610), (1501, 10474220), (1580, 9950509), (2204, 7133305), (2291, 6862420), (2755, 5706644), (3002, 5237110), (4582, 3431210), (5510, 2853322), (6004, 2618555), (7505, 2094844), (9164, 1715605), (11020, 1426661), (11455, 1372484), (15010, 1047422), (18059, 870580), (22910, 686242), (30020, 523711), (36118, 435290), (43529, 361180), (45820, 343121), (72236, 217645), (87058, 180590), (90295, 174116)]