28545880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64877}}^1$

素因数の和:64899

約数の個数: 32

約数和(自身を含む): 70068240

約数和(自身を除く): 41522360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64877, 129754, 259508, 324385, 519016, 648770, 713647, 1297540, 1427294, 2595080, 2854588, 3568235, 5709176, 7136470, 14272940, 28545880]

約数ペア:

[(1, 28545880), (2, 14272940), (4, 7136470), (5, 5709176), (8, 3568235), (10, 2854588), (11, 2595080), (20, 1427294), (22, 1297540), (40, 713647), (44, 648770), (55, 519016), (88, 324385), (110, 259508), (220, 129754), (440, 64877)]