390781412

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{450209}}^1$

素因数の和:450251

約数の個数: 24

約数和(自身を含む): 806776320

約数和(自身を除く): 415994908

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 450209, 900418, 1800836, 3151463, 6302926, 12605852, 13956479, 27912958, 55825916, 97695353, 195390706, 390781412]

約数ペア:

[(1, 390781412), (2, 195390706), (4, 97695353), (7, 55825916), (14, 27912958), (28, 13956479), (31, 12605852), (62, 6302926), (124, 3151463), (217, 1800836), (434, 900418), (868, 450209)]