7964420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20959}}^1$

素因数の和:20987

約数の個数: 24

約数和(自身を含む): 17606400

約数和(自身を除く): 9641980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 20959, 41918, 83836, 104795, 209590, 398221, 419180, 796442, 1592884, 1991105, 3982210, 7964420]

約数ペア:

[(1, 7964420), (2, 3982210), (4, 1991105), (5, 1592884), (10, 796442), (19, 419180), (20, 398221), (38, 209590), (76, 104795), (95, 83836), (190, 41918), (380, 20959)]