668875218

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 1481932800

約数和(自身を除く): 813057582

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 127, 199, 254, 381, 398, 401, 597, 762, 802, 1194, 1203, 1397, 2189, 2406, 2794, 4191, 4378, 4411, 6567, 8382, 8822, 13134, 13233, 25273, 26466, 50546, 50927, 75819, 79799, 101854, 151638, 152781, 159598, 239397, 278003, 305562, 478794, 556006, 560197, 834009, 877789, 1120394, 1668018, 1680591, 1755578, 2633367, 3361182, 5266734, 10134473, 20268946, 30403419, 60806838, 111479203, 222958406, 334437609, 668875218]

約数ペア:

[(1, 668875218), (2, 334437609), (3, 222958406), (6, 111479203), (11, 60806838), (22, 30403419), (33, 20268946), (66, 10134473), (127, 5266734), (199, 3361182), (254, 2633367), (381, 1755578), (398, 1680591), (401, 1668018), (597, 1120394), (762, 877789), (802, 834009), (1194, 560197), (1203, 556006), (1397, 478794), (2189, 305562), (2406, 278003), (2794, 239397), (4191, 159598), (4378, 152781), (4411, 151638), (6567, 101854), (8382, 79799), (8822, 75819), (13134, 50927), (13233, 50546), (25273, 26466)]