8688625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 32

約数和(自身を含む): 12130560

約数和(自身を除く): 3441935

約数列:

[1, 5, 11, 25, 55, 71, 89, 125, 275, 355, 445, 781, 979, 1375, 1775, 2225, 3905, 4895, 6319, 8875, 11125, 19525, 24475, 31595, 69509, 97625, 122375, 157975, 347545, 789875, 1737725, 8688625]

約数ペア:

[(1, 8688625), (5, 1737725), (11, 789875), (25, 347545), (55, 157975), (71, 122375), (89, 97625), (125, 69509), (275, 31595), (355, 24475), (445, 19525), (781, 11125), (979, 8875), (1375, 6319), (1775, 4895), (2225, 3905)]