556780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 1382976

約数和(自身を除く): 826196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 97, 140, 164, 194, 205, 287, 388, 410, 485, 574, 679, 820, 970, 1148, 1358, 1435, 1940, 2716, 2870, 3395, 3977, 5740, 6790, 7954, 13580, 15908, 19885, 27839, 39770, 55678, 79540, 111356, 139195, 278390, 556780]

約数ペア:

[(1, 556780), (2, 278390), (4, 139195), (5, 111356), (7, 79540), (10, 55678), (14, 39770), (20, 27839), (28, 19885), (35, 15908), (41, 13580), (70, 7954), (82, 6790), (97, 5740), (140, 3977), (164, 3395), (194, 2870), (205, 2716), (287, 1940), (388, 1435), (410, 1358), (485, 1148), (574, 970), (679, 820)]