20680707840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{414277}}^1$

素因数の和:414314

約数の個数: 144

約数和(自身を含む): 71129875488

約数和(自身を除く): 50449167648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1560, 1664, 1920, 2080, 2496, 3120, 3328, 3840, 4160, 4992, 6240, 8320, 9984, 12480, 16640, 24960, 49920, 414277, 828554, 1242831, 1657108, 2071385, 2485662, 3314216, 4142770, 4971324, 5385601, 6214155, 6628432, 8285540, 9942648, 10771202, 12428310, 13256864, 16156803, 16571080, 19885296, 21542404, 24856620, 26513728, 26928005, 32313606, 33142160, 39770592, 43084808, 49713240, 53027456, 53856010, 64627212, 66284320, 79541184, 80784015, 86169616, 99426480, 106054912, 107712020, 129254424, 132568640, 159082368, 161568030, 172339232, 198852960, 215424040, 258508848, 265137280, 318164736, 323136060, 344678464, 397705920, 430848080, 517017696, 530274560, 646272120, 689356928, 795411840, 861696160, 1034035392, 1292544240, 1378713856, 1590823680, 1723392320, 2068070784, 2585088480, 3446784640, 4136141568, 5170176960, 6893569280, 10340353920, 20680707840]

約数ペア:

[(1, 20680707840), (2, 10340353920), (3, 6893569280), (4, 5170176960), (5, 4136141568), (6, 3446784640), (8, 2585088480), (10, 2068070784), (12, 1723392320), (13, 1590823680), (15, 1378713856), (16, 1292544240), (20, 1034035392), (24, 861696160), (26, 795411840), (30, 689356928), (32, 646272120), (39, 530274560), (40, 517017696), (48, 430848080), (52, 397705920), (60, 344678464), (64, 323136060), (65, 318164736), (78, 265137280), (80, 258508848), (96, 215424040), (104, 198852960), (120, 172339232), (128, 161568030), (130, 159082368), (156, 132568640), (160, 129254424), (192, 107712020), (195, 106054912), (208, 99426480), (240, 86169616), (256, 80784015), (260, 79541184), (312, 66284320), (320, 64627212), (384, 53856010), (390, 53027456), (416, 49713240), (480, 43084808), (520, 39770592), (624, 33142160), (640, 32313606), (768, 26928005), (780, 26513728), (832, 24856620), (960, 21542404), (1040, 19885296), (1248, 16571080), (1280, 16156803), (1560, 13256864), (1664, 12428310), (1920, 10771202), (2080, 9942648), (2496, 8285540), (3120, 6628432), (3328, 6214155), (3840, 5385601), (4160, 4971324), (4992, 4142770), (6240, 3314216), (8320, 2485662), (9984, 2071385), (12480, 1657108), (16640, 1242831), (24960, 828554), (49920, 414277)]