40254080

素因数分解:

$2^7\times 5^1\times {\mathrm{62897}}^1$

素因数の和:62916

約数の個数: 32

約数和(自身を含む): 96233940

約数和(自身を除く): 55979860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 62897, 125794, 251588, 314485, 503176, 628970, 1006352, 1257940, 2012704, 2515880, 4025408, 5031760, 8050816, 10063520, 20127040, 40254080]

約数ペア:

[(1, 40254080), (2, 20127040), (4, 10063520), (5, 8050816), (8, 5031760), (10, 4025408), (16, 2515880), (20, 2012704), (32, 1257940), (40, 1006352), (64, 628970), (80, 503176), (128, 314485), (160, 251588), (320, 125794), (640, 62897)]