1640384008

素因数分解:

$2^3\times {\mathrm{1279}}^1\times {\mathrm{160319}}^1$

素因数の和:161604

約数の個数: 16

約数和(自身を含む): 3078144000

約数和(自身を除く): 1437759992

約数列:

[1, 2, 4, 8, 1279, 2558, 5116, 10232, 160319, 320638, 641276, 1282552, 205048001, 410096002, 820192004, 1640384008]

約数ペア:

[(1, 1640384008), (2, 820192004), (4, 410096002), (8, 205048001), (1279, 1282552), (2558, 641276), (5116, 320638), (10232, 160319)]