28716380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:699

約数の個数: 96

約数和(自身を含む): 77898240

約数和(自身を除く): 49181860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 55, 58, 70, 77, 110, 116, 140, 145, 154, 203, 220, 290, 308, 319, 385, 406, 580, 638, 643, 770, 812, 1015, 1276, 1286, 1540, 1595, 2030, 2233, 2572, 3190, 3215, 4060, 4466, 4501, 6380, 6430, 7073, 8932, 9002, 11165, 12860, 14146, 18004, 18647, 22330, 22505, 28292, 35365, 37294, 44660, 45010, 49511, 70730, 74588, 90020, 93235, 99022, 130529, 141460, 186470, 198044, 205117, 247555, 261058, 372940, 410234, 495110, 522116, 652645, 820468, 990220, 1025585, 1305290, 1435819, 2051170, 2610580, 2871638, 4102340, 5743276, 7179095, 14358190, 28716380]

約数ペア:

[(1, 28716380), (2, 14358190), (4, 7179095), (5, 5743276), (7, 4102340), (10, 2871638), (11, 2610580), (14, 2051170), (20, 1435819), (22, 1305290), (28, 1025585), (29, 990220), (35, 820468), (44, 652645), (55, 522116), (58, 495110), (70, 410234), (77, 372940), (110, 261058), (116, 247555), (140, 205117), (145, 198044), (154, 186470), (203, 141460), (220, 130529), (290, 99022), (308, 93235), (319, 90020), (385, 74588), (406, 70730), (580, 49511), (638, 45010), (643, 44660), (770, 37294), (812, 35365), (1015, 28292), (1276, 22505), (1286, 22330), (1540, 18647), (1595, 18004), (2030, 14146), (2233, 12860), (2572, 11165), (3190, 9002), (3215, 8932), (4060, 7073), (4466, 6430), (4501, 6380)]