28136360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:315

約数の個数: 128

約数和(自身を含む): 80248320

約数和(自身を除く): 52111960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 85, 92, 115, 119, 136, 140, 161, 170, 184, 230, 238, 257, 280, 322, 340, 391, 460, 476, 514, 595, 644, 680, 782, 805, 920, 952, 1028, 1190, 1285, 1288, 1564, 1610, 1799, 1955, 2056, 2380, 2570, 2737, 3128, 3220, 3598, 3910, 4369, 4760, 5140, 5474, 5911, 6440, 7196, 7820, 8738, 8995, 10280, 10948, 11822, 13685, 14392, 15640, 17476, 17990, 21845, 21896, 23644, 27370, 29555, 30583, 34952, 35980, 41377, 43690, 47288, 54740, 59110, 61166, 71960, 82754, 87380, 100487, 109480, 118220, 122332, 152915, 165508, 174760, 200974, 206885, 236440, 244664, 305830, 331016, 401948, 413770, 502435, 611660, 703409, 803896, 827540, 1004870, 1223320, 1406818, 1655080, 2009740, 2813636, 3517045, 4019480, 5627272, 7034090, 14068180, 28136360]

約数ペア:

[(1, 28136360), (2, 14068180), (4, 7034090), (5, 5627272), (7, 4019480), (8, 3517045), (10, 2813636), (14, 2009740), (17, 1655080), (20, 1406818), (23, 1223320), (28, 1004870), (34, 827540), (35, 803896), (40, 703409), (46, 611660), (56, 502435), (68, 413770), (70, 401948), (85, 331016), (92, 305830), (115, 244664), (119, 236440), (136, 206885), (140, 200974), (161, 174760), (170, 165508), (184, 152915), (230, 122332), (238, 118220), (257, 109480), (280, 100487), (322, 87380), (340, 82754), (391, 71960), (460, 61166), (476, 59110), (514, 54740), (595, 47288), (644, 43690), (680, 41377), (782, 35980), (805, 34952), (920, 30583), (952, 29555), (1028, 27370), (1190, 23644), (1285, 21896), (1288, 21845), (1564, 17990), (1610, 17476), (1799, 15640), (1955, 14392), (2056, 13685), (2380, 11822), (2570, 10948), (2737, 10280), (3128, 8995), (3220, 8738), (3598, 7820), (3910, 7196), (4369, 6440), (4760, 5911), (5140, 5474)]