25408180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1871}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 61641216

約数和(自身を除く): 36233036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1871, 1940, 2716, 3395, 3742, 6790, 7484, 9355, 13097, 13580, 18710, 26194, 37420, 52388, 65485, 130970, 181487, 261940, 362974, 725948, 907435, 1270409, 1814870, 2540818, 3629740, 5081636, 6352045, 12704090, 25408180]

約数ペア:

[(1, 25408180), (2, 12704090), (4, 6352045), (5, 5081636), (7, 3629740), (10, 2540818), (14, 1814870), (20, 1270409), (28, 907435), (35, 725948), (70, 362974), (97, 261940), (140, 181487), (194, 130970), (388, 65485), (485, 52388), (679, 37420), (970, 26194), (1358, 18710), (1871, 13580), (1940, 13097), (2716, 9355), (3395, 7484), (3742, 6790)]