12480025

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 16070400

約数和(自身を除く): 3590375

約数列:

[1, 5, 25, 71, 79, 89, 355, 395, 445, 1775, 1975, 2225, 5609, 6319, 7031, 28045, 31595, 35155, 140225, 157975, 175775, 499201, 2496005, 12480025]

約数ペア:

[(1, 12480025), (5, 2496005), (25, 499201), (71, 175775), (79, 157975), (89, 140225), (355, 35155), (395, 31595), (445, 28045), (1775, 7031), (1975, 6319), (2225, 5609)]