77982830

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{20047}}^1$

素因数の和:20443

約数の個数: 16

約数和(自身を含む): 140736960

約数和(自身を除く): 62754130

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 20047, 40094, 100235, 200470, 7798283, 15596566, 38991415, 77982830]

約数ペア:

[(1, 77982830), (2, 38991415), (5, 15596566), (10, 7798283), (389, 200470), (778, 100235), (1945, 40094), (3890, 20047)]