20647095

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 20410185

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 43, 51, 85, 105, 119, 129, 215, 255, 269, 301, 357, 595, 645, 731, 807, 903, 1345, 1505, 1785, 1883, 2193, 3655, 4035, 4515, 4573, 5117, 5649, 9415, 10965, 11567, 13719, 15351, 22865, 25585, 28245, 32011, 34701, 57835, 68595, 76755, 80969, 96033, 160055, 173505, 196639, 242907, 404845, 480165, 589917, 983195, 1214535, 1376473, 2949585, 4129419, 6882365, 20647095]

約数ペア:

[(1, 20647095), (3, 6882365), (5, 4129419), (7, 2949585), (15, 1376473), (17, 1214535), (21, 983195), (35, 589917), (43, 480165), (51, 404845), (85, 242907), (105, 196639), (119, 173505), (129, 160055), (215, 96033), (255, 80969), (269, 76755), (301, 68595), (357, 57835), (595, 34701), (645, 32011), (731, 28245), (807, 25585), (903, 22865), (1345, 15351), (1505, 13719), (1785, 11567), (1883, 10965), (2193, 9415), (3655, 5649), (4035, 5117), (4515, 4573)]