19776940

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{3221}}^1$

素因数の和:3537

約数の個数: 24

約数和(自身を含む): 41679792

約数和(自身を除く): 21902852

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 3221, 6140, 6442, 12884, 16105, 32210, 64420, 988847, 1977694, 3955388, 4944235, 9888470, 19776940]

約数ペア:

[(1, 19776940), (2, 9888470), (4, 4944235), (5, 3955388), (10, 1977694), (20, 988847), (307, 64420), (614, 32210), (1228, 16105), (1535, 12884), (3070, 6442), (3221, 6140)]