1880560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2137}}^1$

素因数の和:2161

約数の個数: 40

約数和(自身を含む): 4772016

約数和(自身を除く): 2891456

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2137, 4274, 8548, 10685, 17096, 21370, 23507, 34192, 42740, 47014, 85480, 94028, 117535, 170960, 188056, 235070, 376112, 470140, 940280, 1880560]

約数ペア:

[(1, 1880560), (2, 940280), (4, 470140), (5, 376112), (8, 235070), (10, 188056), (11, 170960), (16, 117535), (20, 94028), (22, 85480), (40, 47014), (44, 42740), (55, 34192), (80, 23507), (88, 21370), (110, 17096), (176, 10685), (220, 8548), (440, 4274), (880, 2137)]