19752560

素因数分解:

$2^4\times 5^1\times {\mathrm{246907}}^1$

素因数の和:246920

約数の個数: 20

約数和(自身を含む): 45924888

約数和(自身を除く): 26172328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246907, 493814, 987628, 1234535, 1975256, 2469070, 3950512, 4938140, 9876280, 19752560]

約数ペア:

[(1, 19752560), (2, 9876280), (4, 4938140), (5, 3950512), (8, 2469070), (10, 1975256), (16, 1234535), (20, 987628), (40, 493814), (80, 246907)]