28226275

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 46441472

約数和(自身を除く): 18215197

約数列:

[1, 5, 7, 11, 25, 31, 35, 43, 55, 77, 121, 155, 175, 215, 217, 275, 301, 341, 385, 473, 605, 775, 847, 1075, 1085, 1333, 1505, 1705, 1925, 2365, 2387, 3025, 3311, 3751, 4235, 5203, 5425, 6665, 7525, 8525, 9331, 11825, 11935, 14663, 16555, 18755, 21175, 26015, 26257, 33325, 36421, 46655, 59675, 73315, 82775, 93775, 102641, 130075, 131285, 161293, 182105, 233275, 366575, 513205, 656425, 806465, 910525, 1129051, 2566025, 4032325, 5645255, 28226275]

約数ペア:

[(1, 28226275), (5, 5645255), (7, 4032325), (11, 2566025), (25, 1129051), (31, 910525), (35, 806465), (43, 656425), (55, 513205), (77, 366575), (121, 233275), (155, 182105), (175, 161293), (215, 131285), (217, 130075), (275, 102641), (301, 93775), (341, 82775), (385, 73315), (473, 59675), (605, 46655), (775, 36421), (847, 33325), (1075, 26257), (1085, 26015), (1333, 21175), (1505, 18755), (1705, 16555), (1925, 14663), (2365, 11935), (2387, 11825), (3025, 9331), (3311, 8525), (3751, 7525), (4235, 6665), (5203, 5425)]