28205766

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 67852800

約数和(自身を除く): 39647034

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 37, 38, 54, 57, 74, 111, 114, 171, 222, 333, 342, 513, 666, 703, 743, 999, 1026, 1406, 1486, 1998, 2109, 2229, 4218, 4458, 6327, 6687, 12654, 13374, 14117, 18981, 20061, 27491, 28234, 37962, 40122, 42351, 54982, 82473, 84702, 127053, 164946, 247419, 254106, 381159, 494838, 522329, 742257, 762318, 1044658, 1484514, 1566987, 3133974, 4700961, 9401922, 14102883, 28205766]

約数ペア:

[(1, 28205766), (2, 14102883), (3, 9401922), (6, 4700961), (9, 3133974), (18, 1566987), (19, 1484514), (27, 1044658), (37, 762318), (38, 742257), (54, 522329), (57, 494838), (74, 381159), (111, 254106), (114, 247419), (171, 164946), (222, 127053), (333, 84702), (342, 82473), (513, 54982), (666, 42351), (703, 40122), (743, 37962), (999, 28234), (1026, 27491), (1406, 20061), (1486, 18981), (1998, 14117), (2109, 13374), (2229, 12654), (4218, 6687), (4458, 6327)]