212718380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1519417}}^1$

素因数の和:1519433

約数の個数: 24

約数和(自身を含む): 510524448

約数和(自身を除く): 297806068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1519417, 3038834, 6077668, 7597085, 10635919, 15194170, 21271838, 30388340, 42543676, 53179595, 106359190, 212718380]

約数ペア:

[(1, 212718380), (2, 106359190), (4, 53179595), (5, 42543676), (7, 30388340), (10, 21271838), (14, 15194170), (20, 10635919), (28, 7597085), (35, 6077668), (70, 3038834), (140, 1519417)]