78820046680

素因数分解:

$2^3\times 5^1\times {\mathrm{1970501167}}^1$

素因数の和:1970501178

約数の個数: 16

約数和(自身を含む): 177345105120

約数和(自身を除く): 98525058440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1970501167, 3941002334, 7882004668, 9852505835, 15764009336, 19705011670, 39410023340, 78820046680]

約数ペア:

[(1, 78820046680), (2, 39410023340), (4, 19705011670), (5, 15764009336), (8, 9852505835), (10, 7882004668), (20, 3941002334), (40, 1970501167)]