28366220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23251}}^1$

素因数の和:23321

約数の個数: 24

約数和(自身を含む): 60548208

約数和(自身を除く): 32181988

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 23251, 46502, 93004, 116255, 232510, 465020, 1418311, 2836622, 5673244, 7091555, 14183110, 28366220]

約数ペア:

[(1, 28366220), (2, 14183110), (4, 7091555), (5, 5673244), (10, 2836622), (20, 1418311), (61, 465020), (122, 232510), (244, 116255), (305, 93004), (610, 46502), (1220, 23251)]