19715667080

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{968353}}^1$

素因数の和:968873

約数の個数: 32

約数和(自身を含む): 44447448600

約数和(自身を除く): 24731781520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 10180, 20360, 968353, 1936706, 3873412, 4841765, 7746824, 9683530, 19367060, 38734120, 492891677, 985783354, 1971566708, 2464458385, 3943133416, 4928916770, 9857833540, 19715667080]

約数ペア:

[(1, 19715667080), (2, 9857833540), (4, 4928916770), (5, 3943133416), (8, 2464458385), (10, 1971566708), (20, 985783354), (40, 492891677), (509, 38734120), (1018, 19367060), (2036, 9683530), (2545, 7746824), (4072, 4841765), (5090, 3873412), (10180, 1936706), (20360, 968353)]