138371900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{19489}}^1$

素因数の和:19574

約数の個数: 36

約数和(自身を含む): 304511760

約数和(自身を除く): 166139860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 19489, 38978, 77956, 97445, 194890, 389780, 487225, 974450, 1383719, 1948900, 2767438, 5534876, 6918595, 13837190, 27674380, 34592975, 69185950, 138371900]

約数ペア:

[(1, 138371900), (2, 69185950), (4, 34592975), (5, 27674380), (10, 13837190), (20, 6918595), (25, 5534876), (50, 2767438), (71, 1948900), (100, 1383719), (142, 974450), (284, 487225), (355, 389780), (710, 194890), (1420, 97445), (1775, 77956), (3550, 38978), (7100, 19489)]