31940415

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 60540480

約数和(自身を除く): 28600065

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 585, 639, 769, 923, 1065, 2307, 2769, 3195, 3845, 4615, 6921, 8307, 9997, 11535, 13845, 29991, 34605, 41535, 49985, 54599, 89973, 149955, 163797, 272995, 449865, 491391, 709787, 818985, 2129361, 2456955, 3548935, 6388083, 10646805, 31940415]

約数ペア:

[(1, 31940415), (3, 10646805), (5, 6388083), (9, 3548935), (13, 2456955), (15, 2129361), (39, 818985), (45, 709787), (65, 491391), (71, 449865), (117, 272995), (195, 163797), (213, 149955), (355, 89973), (585, 54599), (639, 49985), (769, 41535), (923, 34605), (1065, 29991), (2307, 13845), (2769, 11535), (3195, 9997), (3845, 8307), (4615, 6921)]