745012240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{599}}^1\times {\mathrm{2221}}^1$

素因数の和:2840

約数の個数: 80

約数和(自身を含む): 1983801600

約数和(自身を除く): 1238789360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 599, 1198, 2221, 2396, 2995, 4193, 4442, 4792, 5990, 8386, 8884, 9584, 11105, 11980, 15547, 16772, 17768, 20965, 22210, 23960, 31094, 33544, 35536, 41930, 44420, 47920, 62188, 67088, 77735, 83860, 88840, 124376, 155470, 167720, 177680, 248752, 310940, 335440, 621880, 1243760, 1330379, 2660758, 5321516, 6651895, 9312653, 10643032, 13303790, 18625306, 21286064, 26607580, 37250612, 46563265, 53215160, 74501224, 93126530, 106430320, 149002448, 186253060, 372506120, 745012240]

約数ペア:

[(1, 745012240), (2, 372506120), (4, 186253060), (5, 149002448), (7, 106430320), (8, 93126530), (10, 74501224), (14, 53215160), (16, 46563265), (20, 37250612), (28, 26607580), (35, 21286064), (40, 18625306), (56, 13303790), (70, 10643032), (80, 9312653), (112, 6651895), (140, 5321516), (280, 2660758), (560, 1330379), (599, 1243760), (1198, 621880), (2221, 335440), (2396, 310940), (2995, 248752), (4193, 177680), (4442, 167720), (4792, 155470), (5990, 124376), (8386, 88840), (8884, 83860), (9584, 77735), (11105, 67088), (11980, 62188), (15547, 47920), (16772, 44420), (17768, 41930), (20965, 35536), (22210, 33544), (23960, 31094)]