2161569280

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{64951}}^1$

素因数の和:64987

約数の個数: 80

約数和(自身を含む): 5581455264

約数和(自身を除く): 3419885984

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1040, 1280, 1664, 2080, 2560, 3328, 4160, 6656, 8320, 16640, 33280, 64951, 129902, 259804, 324755, 519608, 649510, 844363, 1039216, 1299020, 1688726, 2078432, 2598040, 3377452, 4156864, 4221815, 5196080, 6754904, 8313728, 8443630, 10392160, 13509808, 16627456, 16887260, 20784320, 27019616, 33254912, 33774520, 41568640, 54039232, 67549040, 83137280, 108078464, 135098080, 166274560, 216156928, 270196160, 432313856, 540392320, 1080784640, 2161569280]

約数ペア:

[(1, 2161569280), (2, 1080784640), (4, 540392320), (5, 432313856), (8, 270196160), (10, 216156928), (13, 166274560), (16, 135098080), (20, 108078464), (26, 83137280), (32, 67549040), (40, 54039232), (52, 41568640), (64, 33774520), (65, 33254912), (80, 27019616), (104, 20784320), (128, 16887260), (130, 16627456), (160, 13509808), (208, 10392160), (256, 8443630), (260, 8313728), (320, 6754904), (416, 5196080), (512, 4221815), (520, 4156864), (640, 3377452), (832, 2598040), (1040, 2078432), (1280, 1688726), (1664, 1299020), (2080, 1039216), (2560, 844363), (3328, 649510), (4160, 519608), (6656, 324755), (8320, 259804), (16640, 129902), (33280, 64951)]