7768820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5471}}^1$

素因数の和:5551

約数の個数: 24

約数和(自身を含む): 16547328

約数和(自身を除く): 8778508

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 5471, 10942, 21884, 27355, 54710, 109420, 388441, 776882, 1553764, 1942205, 3884410, 7768820]

約数ペア:

[(1, 7768820), (2, 3884410), (4, 1942205), (5, 1553764), (10, 776882), (20, 388441), (71, 109420), (142, 54710), (284, 27355), (355, 21884), (710, 10942), (1420, 5471)]