2457980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 5992896

約数和(自身を除く): 3534916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 181, 194, 362, 388, 485, 679, 724, 905, 970, 1267, 1358, 1810, 1940, 2534, 2716, 3395, 3620, 5068, 6335, 6790, 12670, 13580, 17557, 25340, 35114, 70228, 87785, 122899, 175570, 245798, 351140, 491596, 614495, 1228990, 2457980]

約数ペア:

[(1, 2457980), (2, 1228990), (4, 614495), (5, 491596), (7, 351140), (10, 245798), (14, 175570), (20, 122899), (28, 87785), (35, 70228), (70, 35114), (97, 25340), (140, 17557), (181, 13580), (194, 12670), (362, 6790), (388, 6335), (485, 5068), (679, 3620), (724, 3395), (905, 2716), (970, 2534), (1267, 1940), (1358, 1810)]