12858125

素因数分解:

$5^4\times 7^1\times {\mathrm{2939}}^1$

素因数の和:2966

約数の個数: 20

約数和(自身を含む): 18369120

約数和(自身を除く): 5510995

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 2939, 4375, 14695, 20573, 73475, 102865, 367375, 514325, 1836875, 2571625, 12858125]

約数ペア:

[(1, 12858125), (5, 2571625), (7, 1836875), (25, 514325), (35, 367375), (125, 102865), (175, 73475), (625, 20573), (875, 14695), (2939, 4375)]