19688860

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6607}}^1$

素因数の和:6765

約数の個数: 24

約数和(自身を含む): 41630400

約数和(自身を除く): 21941540

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6607, 13214, 26428, 33035, 66070, 132140, 984443, 1968886, 3937772, 4922215, 9844430, 19688860]

約数ペア:

[(1, 19688860), (2, 9844430), (4, 4922215), (5, 3937772), (10, 1968886), (20, 984443), (149, 132140), (298, 66070), (596, 33035), (745, 26428), (1490, 13214), (2980, 6607)]