72985880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165877}}^1$

素因数の和:165899

約数の個数: 32

約数和(自身を含む): 179148240

約数和(自身を除く): 106162360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165877, 331754, 663508, 829385, 1327016, 1658770, 1824647, 3317540, 3649294, 6635080, 7298588, 9123235, 14597176, 18246470, 36492940, 72985880]

約数ペア:

[(1, 72985880), (2, 36492940), (4, 18246470), (5, 14597176), (8, 9123235), (10, 7298588), (11, 6635080), (20, 3649294), (22, 3317540), (40, 1824647), (44, 1658770), (55, 1327016), (88, 829385), (110, 663508), (220, 331754), (440, 165877)]