20291680

素因数分解:

$2^5\times 5^1\times {\mathrm{126823}}^1$

素因数の和:126838

約数の個数: 24

約数和(自身を含む): 47939472

約数和(自身を除く): 27647792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 126823, 253646, 507292, 634115, 1014584, 1268230, 2029168, 2536460, 4058336, 5072920, 10145840, 20291680]

約数ペア:

[(1, 20291680), (2, 10145840), (4, 5072920), (5, 4058336), (8, 2536460), (10, 2029168), (16, 1268230), (20, 1014584), (32, 634115), (40, 507292), (80, 253646), (160, 126823)]