20820421370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{5711}}^1\times {\mathrm{52081}}^1$

素因数の和:57806

約数の個数: 32

約数和(自身を含む): 42838903296

約数和(自身を除く): 22018481926

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 5711, 11422, 28555, 39977, 52081, 57110, 79954, 104162, 199885, 260405, 364567, 399770, 520810, 729134, 1822835, 3645670, 297434591, 594869182, 1487172955, 2082042137, 2974345910, 4164084274, 10410210685, 20820421370]

約数ペア:

[(1, 20820421370), (2, 10410210685), (5, 4164084274), (7, 2974345910), (10, 2082042137), (14, 1487172955), (35, 594869182), (70, 297434591), (5711, 3645670), (11422, 1822835), (28555, 729134), (39977, 520810), (52081, 399770), (57110, 364567), (79954, 260405), (104162, 199885)]