1381356800

素因数分解:

$2^8\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2137}}^1$

素因数の和:2264

約数の個数: 108

約数和(自身を含む): 3454541916

約数和(自身を除く): 2073185116

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 128, 160, 200, 202, 256, 320, 400, 404, 505, 640, 800, 808, 1010, 1280, 1600, 1616, 2020, 2137, 2525, 3200, 3232, 4040, 4274, 5050, 6400, 6464, 8080, 8548, 10100, 10685, 12928, 16160, 17096, 20200, 21370, 25856, 32320, 34192, 40400, 42740, 53425, 64640, 68384, 80800, 85480, 106850, 129280, 136768, 161600, 170960, 213700, 215837, 273536, 323200, 341920, 427400, 431674, 547072, 646400, 683840, 854800, 863348, 1079185, 1367680, 1709600, 1726696, 2158370, 2735360, 3419200, 3453392, 4316740, 5395925, 6838400, 6906784, 8633480, 10791850, 13676800, 13813568, 17266960, 21583700, 27627136, 34533920, 43167400, 55254272, 69067840, 86334800, 138135680, 172669600, 276271360, 345339200, 690678400, 1381356800]

約数ペア:

[(1, 1381356800), (2, 690678400), (4, 345339200), (5, 276271360), (8, 172669600), (10, 138135680), (16, 86334800), (20, 69067840), (25, 55254272), (32, 43167400), (40, 34533920), (50, 27627136), (64, 21583700), (80, 17266960), (100, 13813568), (101, 13676800), (128, 10791850), (160, 8633480), (200, 6906784), (202, 6838400), (256, 5395925), (320, 4316740), (400, 3453392), (404, 3419200), (505, 2735360), (640, 2158370), (800, 1726696), (808, 1709600), (1010, 1367680), (1280, 1079185), (1600, 863348), (1616, 854800), (2020, 683840), (2137, 646400), (2525, 547072), (3200, 431674), (3232, 427400), (4040, 341920), (4274, 323200), (5050, 273536), (6400, 215837), (6464, 213700), (8080, 170960), (8548, 161600), (10100, 136768), (10685, 129280), (12928, 106850), (16160, 85480), (17096, 80800), (20200, 68384), (21370, 64640), (25856, 53425), (32320, 42740), (34192, 40400)]