39989936

素因数分解:

$2^4\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1289}}^1$

素因数の和:1581

約数の個数: 40

約数和(自身を含む): 88937760

約数和(自身を除く): 48947824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 277, 554, 1108, 1289, 1939, 2216, 2578, 3878, 4432, 5156, 7756, 9023, 10312, 15512, 18046, 20624, 31024, 36092, 72184, 144368, 357053, 714106, 1428212, 2499371, 2856424, 4998742, 5712848, 9997484, 19994968, 39989936]

約数ペア:

[(1, 39989936), (2, 19994968), (4, 9997484), (7, 5712848), (8, 4998742), (14, 2856424), (16, 2499371), (28, 1428212), (56, 714106), (112, 357053), (277, 144368), (554, 72184), (1108, 36092), (1289, 31024), (1939, 20624), (2216, 18046), (2578, 15512), (3878, 10312), (4432, 9023), (5156, 7756)]