20158884620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3391}}^1\times {\mathrm{42463}}^1$

素因数の和:45870

約数の個数: 48

約数和(自身を含む): 48396730368

約数和(自身を除く): 28237845748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3391, 6782, 13564, 16955, 23737, 33910, 42463, 47474, 67820, 84926, 94948, 118685, 169852, 212315, 237370, 297241, 424630, 474740, 594482, 849260, 1188964, 1486205, 2972410, 5944820, 143992033, 287984066, 575968132, 719960165, 1007944231, 1439920330, 2015888462, 2879840660, 4031776924, 5039721155, 10079442310, 20158884620]

約数ペア:

[(1, 20158884620), (2, 10079442310), (4, 5039721155), (5, 4031776924), (7, 2879840660), (10, 2015888462), (14, 1439920330), (20, 1007944231), (28, 719960165), (35, 575968132), (70, 287984066), (140, 143992033), (3391, 5944820), (6782, 2972410), (13564, 1486205), (16955, 1188964), (23737, 849260), (33910, 594482), (42463, 474740), (47474, 424630), (67820, 297241), (84926, 237370), (94948, 212315), (118685, 169852)]