77885420

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{6917}}^1$

素因数の和:7489

約数の個数: 24

約数和(自身を含む): 163873584

約数和(自身を除く): 85988164

約数列:

[1, 2, 4, 5, 10, 20, 563, 1126, 2252, 2815, 5630, 6917, 11260, 13834, 27668, 34585, 69170, 138340, 3894271, 7788542, 15577084, 19471355, 38942710, 77885420]

約数ペア:

[(1, 77885420), (2, 38942710), (4, 19471355), (5, 15577084), (10, 7788542), (20, 3894271), (563, 138340), (1126, 69170), (2252, 34585), (2815, 27668), (5630, 13834), (6917, 11260)]