20765280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43261}}^1$

素因数の和:43279

約数の個数: 48

約数和(自身を含む): 65412144

約数和(自身を除く): 44646864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43261, 86522, 129783, 173044, 216305, 259566, 346088, 432610, 519132, 648915, 692176, 865220, 1038264, 1297830, 1384352, 1730440, 2076528, 2595660, 3460880, 4153056, 5191320, 6921760, 10382640, 20765280]

約数ペア:

[(1, 20765280), (2, 10382640), (3, 6921760), (4, 5191320), (5, 4153056), (6, 3460880), (8, 2595660), (10, 2076528), (12, 1730440), (15, 1384352), (16, 1297830), (20, 1038264), (24, 865220), (30, 692176), (32, 648915), (40, 519132), (48, 432610), (60, 346088), (80, 259566), (96, 216305), (120, 173044), (160, 129783), (240, 86522), (480, 43261)]