78820870

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{9743}}^1$

素因数の和:10559

約数の個数: 16

約数和(自身を含む): 142067520

約数和(自身を除く): 63246650

約数列:

[1, 2, 5, 10, 809, 1618, 4045, 8090, 9743, 19486, 48715, 97430, 7882087, 15764174, 39410435, 78820870]

約数ペア:

[(1, 78820870), (2, 39410435), (5, 15764174), (10, 7882087), (809, 97430), (1618, 48715), (4045, 19486), (8090, 9743)]