20178077168

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{409}}^1\times {\mathrm{42239}}^1$

素因数の和:42729

約数の個数: 40

約数和(自身を含む): 39728409600

約数和(自身を除く): 19550332432

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 409, 584, 818, 1168, 1636, 3272, 6544, 29857, 42239, 59714, 84478, 119428, 168956, 238856, 337912, 477712, 675824, 3083447, 6166894, 12333788, 17275751, 24667576, 34551502, 49335152, 69103004, 138206008, 276412016, 1261129823, 2522259646, 5044519292, 10089038584, 20178077168]

約数ペア:

[(1, 20178077168), (2, 10089038584), (4, 5044519292), (8, 2522259646), (16, 1261129823), (73, 276412016), (146, 138206008), (292, 69103004), (409, 49335152), (584, 34551502), (818, 24667576), (1168, 17275751), (1636, 12333788), (3272, 6166894), (6544, 3083447), (29857, 675824), (42239, 477712), (59714, 337912), (84478, 238856), (119428, 168956)]