201757420

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{19819}}^1$

素因数の和:20337

約数の個数: 24

約数和(自身を含む): 424544400

約数和(自身を除く): 222786980

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 19819, 39638, 79276, 99095, 198190, 396380, 10087871, 20175742, 40351484, 50439355, 100878710, 201757420]

約数ペア:

[(1, 201757420), (2, 100878710), (4, 50439355), (5, 40351484), (10, 20175742), (20, 10087871), (509, 396380), (1018, 198190), (2036, 99095), (2545, 79276), (5090, 39638), (10180, 19819)]