1999021825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{135757}}^1$

素因数の和:135817

約数の個数: 24

約数和(自身を含む): 2693438720

約数和(自身を除く): 694416895

約数列:

[1, 5, 19, 25, 31, 95, 155, 475, 589, 775, 2945, 14725, 135757, 678785, 2579383, 3393925, 4208467, 12896915, 21042335, 64484575, 79960873, 105211675, 399804365, 1999021825]

約数ペア:

[(1, 1999021825), (5, 399804365), (19, 105211675), (25, 79960873), (31, 64484575), (95, 21042335), (155, 12896915), (475, 4208467), (589, 3393925), (775, 2579383), (2945, 678785), (14725, 135757)]