80457880

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{8861}}^1$

素因数の和:9099

約数の個数: 32

約数和(自身を含む): 181848240

約数和(自身を除く): 101390360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 8861, 9080, 17722, 35444, 44305, 70888, 88610, 177220, 354440, 2011447, 4022894, 8045788, 10057235, 16091576, 20114470, 40228940, 80457880]

約数ペア:

[(1, 80457880), (2, 40228940), (4, 20114470), (5, 16091576), (8, 10057235), (10, 8045788), (20, 4022894), (40, 2011447), (227, 354440), (454, 177220), (908, 88610), (1135, 70888), (1816, 44305), (2270, 35444), (4540, 17722), (8861, 9080)]