89770120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{204023}}^1$

素因数の和:204045

約数の個数: 32

約数和(自身を含む): 220345920

約数和(自身を除く): 130575800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 204023, 408046, 816092, 1020115, 1632184, 2040230, 2244253, 4080460, 4488506, 8160920, 8977012, 11221265, 17954024, 22442530, 44885060, 89770120]

約数ペア:

[(1, 89770120), (2, 44885060), (4, 22442530), (5, 17954024), (8, 11221265), (10, 8977012), (11, 8160920), (20, 4488506), (22, 4080460), (40, 2244253), (44, 2040230), (55, 1632184), (88, 1020115), (110, 816092), (220, 408046), (440, 204023)]