20158527980

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7357127}}^1$

素因数の和:7357273

約数の個数: 24

約数和(自身を含む): 42641913888

約数和(自身を除く): 22483385908

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7357127, 14714254, 29428508, 36785635, 73571270, 147142540, 1007926399, 2015852798, 4031705596, 5039631995, 10079263990, 20158527980]

約数ペア:

[(1, 20158527980), (2, 10079263990), (4, 5039631995), (5, 4031705596), (10, 2015852798), (20, 1007926399), (137, 147142540), (274, 73571270), (548, 36785635), (685, 29428508), (1370, 14714254), (2740, 7357127)]