18794420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{49459}}^1$

素因数の和:49487

約数の個数: 24

約数和(自身を含む): 41546400

約数和(自身を除く): 22751980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 49459, 98918, 197836, 247295, 494590, 939721, 989180, 1879442, 3758884, 4698605, 9397210, 18794420]

約数ペア:

[(1, 18794420), (2, 9397210), (4, 4698605), (5, 3758884), (10, 1879442), (19, 989180), (20, 939721), (38, 494590), (76, 247295), (95, 197836), (190, 98918), (380, 49459)]