19674800

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{487}}^1$

素因数の和:606

約数の個数: 60

約数和(自身を含む): 47834736

約数和(自身を除く): 28159936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 487, 505, 808, 974, 1010, 1616, 1948, 2020, 2435, 2525, 3896, 4040, 4870, 5050, 7792, 8080, 9740, 10100, 12175, 19480, 20200, 24350, 38960, 40400, 48700, 49187, 97400, 98374, 194800, 196748, 245935, 393496, 491870, 786992, 983740, 1229675, 1967480, 2459350, 3934960, 4918700, 9837400, 19674800]

約数ペア:

[(1, 19674800), (2, 9837400), (4, 4918700), (5, 3934960), (8, 2459350), (10, 1967480), (16, 1229675), (20, 983740), (25, 786992), (40, 491870), (50, 393496), (80, 245935), (100, 196748), (101, 194800), (200, 98374), (202, 97400), (400, 49187), (404, 48700), (487, 40400), (505, 38960), (808, 24350), (974, 20200), (1010, 19480), (1616, 12175), (1948, 10100), (2020, 9740), (2435, 8080), (2525, 7792), (3896, 5050), (4040, 4870)]