20805583820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148611313}}^1$

素因数の和:148611329

約数の個数: 24

約数和(自身を含む): 49933401504

約数和(自身を除く): 29127817684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148611313, 297222626, 594445252, 743056565, 1040279191, 1486113130, 2080558382, 2972226260, 4161116764, 5201395955, 10402791910, 20805583820]

約数ペア:

[(1, 20805583820), (2, 10402791910), (4, 5201395955), (5, 4161116764), (7, 2972226260), (10, 2080558382), (14, 1486113130), (20, 1040279191), (28, 743056565), (35, 594445252), (70, 297222626), (140, 148611313)]