28168440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 128

約数和(自身を含む): 88957440

約数和(自身を除く): 60789000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 53, 60, 86, 103, 106, 120, 129, 159, 172, 206, 212, 215, 258, 265, 309, 318, 344, 412, 424, 430, 515, 516, 530, 618, 636, 645, 795, 824, 860, 1030, 1032, 1060, 1236, 1272, 1290, 1545, 1590, 1720, 2060, 2120, 2279, 2472, 2580, 3090, 3180, 4120, 4429, 4558, 5160, 5459, 6180, 6360, 6837, 8858, 9116, 10918, 11395, 12360, 13287, 13674, 16377, 17716, 18232, 21836, 22145, 22790, 26574, 27295, 27348, 32754, 34185, 35432, 43672, 44290, 45580, 53148, 54590, 54696, 65508, 66435, 68370, 81885, 88580, 91160, 106296, 109180, 131016, 132870, 136740, 163770, 177160, 218360, 234737, 265740, 273480, 327540, 469474, 531480, 655080, 704211, 938948, 1173685, 1408422, 1877896, 2347370, 2816844, 3521055, 4694740, 5633688, 7042110, 9389480, 14084220, 28168440]

約数ペア:

[(1, 28168440), (2, 14084220), (3, 9389480), (4, 7042110), (5, 5633688), (6, 4694740), (8, 3521055), (10, 2816844), (12, 2347370), (15, 1877896), (20, 1408422), (24, 1173685), (30, 938948), (40, 704211), (43, 655080), (53, 531480), (60, 469474), (86, 327540), (103, 273480), (106, 265740), (120, 234737), (129, 218360), (159, 177160), (172, 163770), (206, 136740), (212, 132870), (215, 131016), (258, 109180), (265, 106296), (309, 91160), (318, 88580), (344, 81885), (412, 68370), (424, 66435), (430, 65508), (515, 54696), (516, 54590), (530, 53148), (618, 45580), (636, 44290), (645, 43672), (795, 35432), (824, 34185), (860, 32754), (1030, 27348), (1032, 27295), (1060, 26574), (1236, 22790), (1272, 22145), (1290, 21836), (1545, 18232), (1590, 17716), (1720, 16377), (2060, 13674), (2120, 13287), (2279, 12360), (2472, 11395), (2580, 10918), (3090, 9116), (3180, 8858), (4120, 6837), (4429, 6360), (4558, 6180), (5160, 5459)]