78308720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139837}}^1$

素因数の和:139857

約数の個数: 40

約数和(自身を含む): 208078944

約数和(自身を除く): 129770224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139837, 279674, 559348, 699185, 978859, 1118696, 1398370, 1957718, 2237392, 2796740, 3915436, 4894295, 5593480, 7830872, 9788590, 11186960, 15661744, 19577180, 39154360, 78308720]

約数ペア:

[(1, 78308720), (2, 39154360), (4, 19577180), (5, 15661744), (7, 11186960), (8, 9788590), (10, 7830872), (14, 5593480), (16, 4894295), (20, 3915436), (28, 2796740), (35, 2237392), (40, 1957718), (56, 1398370), (70, 1118696), (80, 978859), (112, 699185), (140, 559348), (280, 279674), (560, 139837)]