18684875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:260

約数の個数: 32

約数和(自身を含む): 25878528

約数和(自身を除く): 7193653

約数列:

[1, 5, 11, 25, 55, 107, 125, 127, 275, 535, 635, 1177, 1375, 1397, 2675, 3175, 5885, 6985, 13375, 13589, 15875, 29425, 34925, 67945, 147125, 149479, 174625, 339725, 747395, 1698625, 3736975, 18684875]

約数ペア:

[(1, 18684875), (5, 3736975), (11, 1698625), (25, 747395), (55, 339725), (107, 174625), (125, 149479), (127, 147125), (275, 67945), (535, 34925), (635, 29425), (1177, 15875), (1375, 13589), (1397, 13375), (2675, 6985), (3175, 5885)]