202045840

素因数分解:

$2^4\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{2237}}^1$

素因数の和:3379

約数の個数: 40

約数和(自身を含む): 470382840

約数和(自身を除く): 268337000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1129, 2237, 2258, 4474, 4516, 5645, 8948, 9032, 11185, 11290, 17896, 18064, 22370, 22580, 35792, 44740, 45160, 89480, 90320, 178960, 2525573, 5051146, 10102292, 12627865, 20204584, 25255730, 40409168, 50511460, 101022920, 202045840]

約数ペア:

[(1, 202045840), (2, 101022920), (4, 50511460), (5, 40409168), (8, 25255730), (10, 20204584), (16, 12627865), (20, 10102292), (40, 5051146), (80, 2525573), (1129, 178960), (2237, 90320), (2258, 89480), (4474, 45160), (4516, 44740), (5645, 35792), (8948, 22580), (9032, 22370), (11185, 18064), (11290, 17896)]