20305840

素因数分解:

$2^4\times 5^1\times {\mathrm{253823}}^1$

素因数の和:253836

約数の個数: 20

約数和(自身を含む): 47211264

約数和(自身を除く): 26905424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253823, 507646, 1015292, 1269115, 2030584, 2538230, 4061168, 5076460, 10152920, 20305840]

約数ペア:

[(1, 20305840), (2, 10152920), (4, 5076460), (5, 4061168), (8, 2538230), (10, 2030584), (16, 1269115), (20, 1015292), (40, 507646), (80, 253823)]