80490100

素因数分解:

$2^2\times 5^2\times {\mathrm{804901}}^1$

素因数の和:804915

約数の個数: 18

約数和(自身を含む): 174663734

約数和(自身を除く): 94173634

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 804901, 1609802, 3219604, 4024505, 8049010, 16098020, 20122525, 40245050, 80490100]

約数ペア:

[(1, 80490100), (2, 40245050), (4, 20122525), (5, 16098020), (10, 8049010), (20, 4024505), (25, 3219604), (50, 1609802), (100, 804901)]