40641520

素因数分解:

$2^4\times 5^1\times {\mathrm{508019}}^1$

素因数の和:508032

約数の個数: 20

約数和(自身を含む): 94491720

約数和(自身を除く): 53850200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 508019, 1016038, 2032076, 2540095, 4064152, 5080190, 8128304, 10160380, 20320760, 40641520]

約数ペア:

[(1, 40641520), (2, 20320760), (4, 10160380), (5, 8128304), (8, 5080190), (10, 4064152), (16, 2540095), (20, 2032076), (40, 1016038), (80, 508019)]