20029532080

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{128857}}^1$

素因数の和:128966

約数の個数: 80

約数和(自身を含む): 48893879520

約数和(自身を除く): 28864347440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 67, 80, 116, 134, 145, 232, 268, 290, 335, 464, 536, 580, 670, 1072, 1160, 1340, 1943, 2320, 2680, 3886, 5360, 7772, 9715, 15544, 19430, 31088, 38860, 77720, 128857, 155440, 257714, 515428, 644285, 1030856, 1288570, 2061712, 2577140, 3736853, 5154280, 7473706, 8633419, 10308560, 14947412, 17266838, 18684265, 29894824, 34533676, 37368530, 43167095, 59789648, 69067352, 74737060, 86334190, 138134704, 149474120, 172668380, 250369151, 298948240, 345336760, 500738302, 690673520, 1001476604, 1251845755, 2002953208, 2503691510, 4005906416, 5007383020, 10014766040, 20029532080]

約数ペア:

[(1, 20029532080), (2, 10014766040), (4, 5007383020), (5, 4005906416), (8, 2503691510), (10, 2002953208), (16, 1251845755), (20, 1001476604), (29, 690673520), (40, 500738302), (58, 345336760), (67, 298948240), (80, 250369151), (116, 172668380), (134, 149474120), (145, 138134704), (232, 86334190), (268, 74737060), (290, 69067352), (335, 59789648), (464, 43167095), (536, 37368530), (580, 34533676), (670, 29894824), (1072, 18684265), (1160, 17266838), (1340, 14947412), (1943, 10308560), (2320, 8633419), (2680, 7473706), (3886, 5154280), (5360, 3736853), (7772, 2577140), (9715, 2061712), (15544, 1288570), (19430, 1030856), (31088, 644285), (38860, 515428), (77720, 257714), (128857, 155440)]