865094380

素因数分解:

$2^2\times 5^1\times {\mathrm{43254719}}^1$

素因数の和:43254728

約数の個数: 12

約数和(自身を含む): 1816698240

約数和(自身を除く): 951603860

約数列:

[1, 2, 4, 5, 10, 20, 43254719, 86509438, 173018876, 216273595, 432547190, 865094380]

約数ペア:

[(1, 865094380), (2, 432547190), (4, 216273595), (5, 173018876), (10, 86509438), (20, 43254719)]