31479680

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{487}}^1$

素因数の和:607

約数の個数: 64

約数和(自身を含む): 76157280

約数和(自身を除く): 44677600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 320, 404, 487, 505, 640, 808, 974, 1010, 1616, 1948, 2020, 2435, 3232, 3896, 4040, 4870, 6464, 7792, 8080, 9740, 12928, 15584, 16160, 19480, 31168, 32320, 38960, 49187, 62336, 64640, 77920, 98374, 155840, 196748, 245935, 311680, 393496, 491870, 786992, 983740, 1573984, 1967480, 3147968, 3934960, 6295936, 7869920, 15739840, 31479680]

約数ペア:

[(1, 31479680), (2, 15739840), (4, 7869920), (5, 6295936), (8, 3934960), (10, 3147968), (16, 1967480), (20, 1573984), (32, 983740), (40, 786992), (64, 491870), (80, 393496), (101, 311680), (128, 245935), (160, 196748), (202, 155840), (320, 98374), (404, 77920), (487, 64640), (505, 62336), (640, 49187), (808, 38960), (974, 32320), (1010, 31168), (1616, 19480), (1948, 16160), (2020, 15584), (2435, 12928), (3232, 9740), (3896, 8080), (4040, 7792), (4870, 6464)]