221437480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{503267}}^1$

素因数の和:503289

約数の個数: 32

約数和(自身を含む): 543529440

約数和(自身を除く): 322091960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 503267, 1006534, 2013068, 2516335, 4026136, 5032670, 5535937, 10065340, 11071874, 20130680, 22143748, 27679685, 44287496, 55359370, 110718740, 221437480]

約数ペア:

[(1, 221437480), (2, 110718740), (4, 55359370), (5, 44287496), (8, 27679685), (10, 22143748), (11, 20130680), (20, 11071874), (22, 10065340), (40, 5535937), (44, 5032670), (55, 4026136), (88, 2516335), (110, 2013068), (220, 1006534), (440, 503267)]