2590790

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:208

約数の個数: 32

約数和(自身を含む): 4898880

約数和(自身を除く): 2308090

約数列:

[1, 2, 5, 10, 41, 71, 82, 89, 142, 178, 205, 355, 410, 445, 710, 890, 2911, 3649, 5822, 6319, 7298, 12638, 14555, 18245, 29110, 31595, 36490, 63190, 259079, 518158, 1295395, 2590790]

約数ペア:

[(1, 2590790), (2, 1295395), (5, 518158), (10, 259079), (41, 63190), (71, 36490), (82, 31595), (89, 29110), (142, 18245), (178, 14555), (205, 12638), (355, 7298), (410, 6319), (445, 5822), (710, 3649), (890, 2911)]