138940020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{771889}}^1$

素因数の和:771904

約数の個数: 36

約数和(自身を含む): 421451940

約数和(自身を除く): 282511920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 771889, 1543778, 2315667, 3087556, 3859445, 4631334, 6947001, 7718890, 9262668, 11578335, 13894002, 15437780, 23156670, 27788004, 34735005, 46313340, 69470010, 138940020]

約数ペア:

[(1, 138940020), (2, 69470010), (3, 46313340), (4, 34735005), (5, 27788004), (6, 23156670), (9, 15437780), (10, 13894002), (12, 11578335), (15, 9262668), (18, 7718890), (20, 6947001), (30, 4631334), (36, 3859445), (45, 3087556), (60, 2315667), (90, 1543778), (180, 771889)]