68986990

素因数分解:

$2^1\times 5^1\times {\mathrm{769}}^1\times {\mathrm{8971}}^1$

素因数の和:9747

約数の個数: 16

約数和(自身を含む): 124351920

約数和(自身を除く): 55364930

約数列:

[1, 2, 5, 10, 769, 1538, 3845, 7690, 8971, 17942, 44855, 89710, 6898699, 13797398, 34493495, 68986990]

約数ペア:

[(1, 68986990), (2, 34493495), (5, 13797398), (10, 6898699), (769, 89710), (1538, 44855), (3845, 17942), (7690, 8971)]