77958620

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{5641}}^1$

素因数の和:6341

約数の個数: 24

約数和(自身を含む): 163979088

約数和(自身を除く): 86020468

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 5641, 6910, 11282, 13820, 22564, 28205, 56410, 112820, 3897931, 7795862, 15591724, 19489655, 38979310, 77958620]

約数ペア:

[(1, 77958620), (2, 38979310), (4, 19489655), (5, 15591724), (10, 7795862), (20, 3897931), (691, 112820), (1382, 56410), (2764, 28205), (3455, 22564), (5641, 13820), (6910, 11282)]