19990550

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{4817}}^1$

素因数の和:4912

約数の個数: 24

約数和(自身を含む): 37638216

約数和(自身を除く): 17647666

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 415, 830, 2075, 4150, 4817, 9634, 24085, 48170, 120425, 240850, 399811, 799622, 1999055, 3998110, 9995275, 19990550]

約数ペア:

[(1, 19990550), (2, 9995275), (5, 3998110), (10, 1999055), (25, 799622), (50, 399811), (83, 240850), (166, 120425), (415, 48170), (830, 24085), (2075, 9634), (4150, 4817)]