20787584000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{23}}^2\times {\mathrm{307}}^1$

素因数の和:388

約数の個数: 264

約数和(自身を含む): 54389903568

約数和(自身を除く): 33602319568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 125, 128, 160, 184, 200, 230, 250, 256, 307, 320, 368, 400, 460, 500, 512, 529, 575, 614, 640, 736, 800, 920, 1000, 1024, 1058, 1150, 1228, 1280, 1472, 1535, 1600, 1840, 2000, 2116, 2300, 2456, 2560, 2645, 2875, 2944, 3070, 3200, 3680, 4000, 4232, 4600, 4912, 5120, 5290, 5750, 5888, 6140, 6400, 7061, 7360, 7675, 8000, 8464, 9200, 9824, 10580, 11500, 11776, 12280, 12800, 13225, 14122, 14720, 15350, 16000, 16928, 18400, 19648, 21160, 23000, 23552, 24560, 25600, 26450, 28244, 29440, 30700, 32000, 33856, 35305, 36800, 38375, 39296, 42320, 46000, 49120, 52900, 56488, 58880, 61400, 64000, 66125, 67712, 70610, 73600, 76750, 78592, 84640, 92000, 98240, 105800, 112976, 117760, 122800, 128000, 132250, 135424, 141220, 147200, 153500, 157184, 162403, 169280, 176525, 184000, 196480, 211600, 225952, 245600, 264500, 270848, 282440, 294400, 307000, 314368, 324806, 338560, 353050, 368000, 392960, 423200, 451904, 491200, 529000, 541696, 564880, 588800, 614000, 649612, 677120, 706100, 736000, 785920, 812015, 846400, 882625, 903808, 982400, 1058000, 1129760, 1228000, 1299224, 1354240, 1412200, 1472000, 1571840, 1624030, 1692800, 1765250, 1807616, 1964800, 2116000, 2259520, 2456000, 2598448, 2708480, 2824400, 2944000, 3248060, 3385600, 3530500, 3615232, 3929600, 4060075, 4232000, 4519040, 4912000, 5196896, 5648800, 6496120, 6771200, 7061000, 7230464, 7859200, 8120150, 8464000, 9038080, 9824000, 10393792, 11297600, 12992240, 13542400, 14122000, 16240300, 16928000, 18076160, 19648000, 20300375, 20787584, 22595200, 25984480, 28244000, 32480600, 33856000, 36152320, 39296000, 40600750, 41575168, 45190400, 51968960, 56488000, 64961200, 67712000, 81201500, 83150336, 90380800, 103937920, 112976000, 129922400, 162403000, 166300672, 180761600, 207875840, 225952000, 259844800, 324806000, 415751680, 451904000, 519689600, 649612000, 831503360, 903808000, 1039379200, 1299224000, 2078758400, 2598448000, 4157516800, 5196896000, 10393792000, 20787584000]

約数ペア:

[(1, 20787584000), (2, 10393792000), (4, 5196896000), (5, 4157516800), (8, 2598448000), (10, 2078758400), (16, 1299224000), (20, 1039379200), (23, 903808000), (25, 831503360), (32, 649612000), (40, 519689600), (46, 451904000), (50, 415751680), (64, 324806000), (80, 259844800), (92, 225952000), (100, 207875840), (115, 180761600), (125, 166300672), (128, 162403000), (160, 129922400), (184, 112976000), (200, 103937920), (230, 90380800), (250, 83150336), (256, 81201500), (307, 67712000), (320, 64961200), (368, 56488000), (400, 51968960), (460, 45190400), (500, 41575168), (512, 40600750), (529, 39296000), (575, 36152320), (614, 33856000), (640, 32480600), (736, 28244000), (800, 25984480), (920, 22595200), (1000, 20787584), (1024, 20300375), (1058, 19648000), (1150, 18076160), (1228, 16928000), (1280, 16240300), (1472, 14122000), (1535, 13542400), (1600, 12992240), (1840, 11297600), (2000, 10393792), (2116, 9824000), (2300, 9038080), (2456, 8464000), (2560, 8120150), (2645, 7859200), (2875, 7230464), (2944, 7061000), (3070, 6771200), (3200, 6496120), (3680, 5648800), (4000, 5196896), (4232, 4912000), (4600, 4519040), (4912, 4232000), (5120, 4060075), (5290, 3929600), (5750, 3615232), (5888, 3530500), (6140, 3385600), (6400, 3248060), (7061, 2944000), (7360, 2824400), (7675, 2708480), (8000, 2598448), (8464, 2456000), (9200, 2259520), (9824, 2116000), (10580, 1964800), (11500, 1807616), (11776, 1765250), (12280, 1692800), (12800, 1624030), (13225, 1571840), (14122, 1472000), (14720, 1412200), (15350, 1354240), (16000, 1299224), (16928, 1228000), (18400, 1129760), (19648, 1058000), (21160, 982400), (23000, 903808), (23552, 882625), (24560, 846400), (25600, 812015), (26450, 785920), (28244, 736000), (29440, 706100), (30700, 677120), (32000, 649612), (33856, 614000), (35305, 588800), (36800, 564880), (38375, 541696), (39296, 529000), (42320, 491200), (46000, 451904), (49120, 423200), (52900, 392960), (56488, 368000), (58880, 353050), (61400, 338560), (64000, 324806), (66125, 314368), (67712, 307000), (70610, 294400), (73600, 282440), (76750, 270848), (78592, 264500), (84640, 245600), (92000, 225952), (98240, 211600), (105800, 196480), (112976, 184000), (117760, 176525), (122800, 169280), (128000, 162403), (132250, 157184), (135424, 153500), (141220, 147200)]