90210820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644363}}^1$

素因数の和:644379

約数の個数: 24

約数和(自身を含む): 216506304

約数和(自身を除く): 126295484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644363, 1288726, 2577452, 3221815, 4510541, 6443630, 9021082, 12887260, 18042164, 22552705, 45105410, 90210820]

約数ペア:

[(1, 90210820), (2, 45105410), (4, 22552705), (5, 18042164), (7, 12887260), (10, 9021082), (14, 6443630), (20, 4510541), (28, 3221815), (35, 2577452), (70, 1288726), (140, 644363)]