28682780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 96

約数和(自身を含む): 74511360

約数和(自身を除く): 45828580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 41, 70, 76, 82, 95, 133, 140, 164, 190, 205, 263, 266, 287, 380, 410, 526, 532, 574, 665, 779, 820, 1052, 1148, 1315, 1330, 1435, 1558, 1841, 2630, 2660, 2870, 3116, 3682, 3895, 4997, 5260, 5453, 5740, 7364, 7790, 9205, 9994, 10783, 10906, 15580, 18410, 19988, 21566, 21812, 24985, 27265, 34979, 36820, 43132, 49970, 53915, 54530, 69958, 75481, 99940, 107830, 109060, 139916, 150962, 174895, 204877, 215660, 301924, 349790, 377405, 409754, 699580, 754810, 819508, 1024385, 1434139, 1509620, 2048770, 2868278, 4097540, 5736556, 7170695, 14341390, 28682780]

約数ペア:

[(1, 28682780), (2, 14341390), (4, 7170695), (5, 5736556), (7, 4097540), (10, 2868278), (14, 2048770), (19, 1509620), (20, 1434139), (28, 1024385), (35, 819508), (38, 754810), (41, 699580), (70, 409754), (76, 377405), (82, 349790), (95, 301924), (133, 215660), (140, 204877), (164, 174895), (190, 150962), (205, 139916), (263, 109060), (266, 107830), (287, 99940), (380, 75481), (410, 69958), (526, 54530), (532, 53915), (574, 49970), (665, 43132), (779, 36820), (820, 34979), (1052, 27265), (1148, 24985), (1315, 21812), (1330, 21566), (1435, 19988), (1558, 18410), (1841, 15580), (2630, 10906), (2660, 10783), (2870, 9994), (3116, 9205), (3682, 7790), (3895, 7364), (4997, 5740), (5260, 5453)]