1280128320

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{647}}^1$

素因数の和:902

約数の個数: 224

約数和(自身を含む): 4542739200

約数和(自身を除く): 3262610880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 229, 240, 270, 288, 320, 360, 432, 458, 480, 540, 576, 647, 687, 720, 864, 916, 960, 1080, 1145, 1294, 1374, 1440, 1728, 1832, 1941, 2061, 2160, 2290, 2588, 2748, 2880, 3235, 3435, 3664, 3882, 4122, 4320, 4580, 5176, 5496, 5823, 6183, 6470, 6870, 7328, 7764, 8244, 8640, 9160, 9705, 10305, 10352, 10992, 11646, 12366, 12940, 13740, 14656, 15528, 16488, 17469, 18320, 19410, 20610, 20704, 21984, 23292, 24732, 25880, 27480, 29115, 30915, 31056, 32976, 34938, 36640, 38820, 41220, 41408, 43968, 46584, 49464, 51760, 54960, 58230, 61830, 62112, 65952, 69876, 73280, 77640, 82440, 87345, 93168, 98928, 103520, 109920, 116460, 123660, 124224, 131904, 139752, 148163, 155280, 164880, 174690, 186336, 197856, 207040, 219840, 232920, 247320, 279504, 296326, 310560, 329760, 349380, 372672, 395712, 444489, 465840, 494640, 559008, 592652, 621120, 659520, 698760, 740815, 888978, 931680, 989280, 1118016, 1185304, 1333467, 1397520, 1481630, 1777956, 1863360, 1978560, 2222445, 2370608, 2666934, 2795040, 2963260, 3555912, 4000401, 4444890, 4741216, 5333868, 5590080, 5926520, 6667335, 7111824, 8000802, 8889780, 9482432, 10667736, 11853040, 13334670, 14223648, 16001604, 17779560, 20002005, 21335472, 23706080, 26669340, 28447296, 32003208, 35559120, 40004010, 42670944, 47412160, 53338680, 64006416, 71118240, 80008020, 85341888, 106677360, 128012832, 142236480, 160016040, 213354720, 256025664, 320032080, 426709440, 640064160, 1280128320]

約数ペア:

[(1, 1280128320), (2, 640064160), (3, 426709440), (4, 320032080), (5, 256025664), (6, 213354720), (8, 160016040), (9, 142236480), (10, 128012832), (12, 106677360), (15, 85341888), (16, 80008020), (18, 71118240), (20, 64006416), (24, 53338680), (27, 47412160), (30, 42670944), (32, 40004010), (36, 35559120), (40, 32003208), (45, 28447296), (48, 26669340), (54, 23706080), (60, 21335472), (64, 20002005), (72, 17779560), (80, 16001604), (90, 14223648), (96, 13334670), (108, 11853040), (120, 10667736), (135, 9482432), (144, 8889780), (160, 8000802), (180, 7111824), (192, 6667335), (216, 5926520), (229, 5590080), (240, 5333868), (270, 4741216), (288, 4444890), (320, 4000401), (360, 3555912), (432, 2963260), (458, 2795040), (480, 2666934), (540, 2370608), (576, 2222445), (647, 1978560), (687, 1863360), (720, 1777956), (864, 1481630), (916, 1397520), (960, 1333467), (1080, 1185304), (1145, 1118016), (1294, 989280), (1374, 931680), (1440, 888978), (1728, 740815), (1832, 698760), (1941, 659520), (2061, 621120), (2160, 592652), (2290, 559008), (2588, 494640), (2748, 465840), (2880, 444489), (3235, 395712), (3435, 372672), (3664, 349380), (3882, 329760), (4122, 310560), (4320, 296326), (4580, 279504), (5176, 247320), (5496, 232920), (5823, 219840), (6183, 207040), (6470, 197856), (6870, 186336), (7328, 174690), (7764, 164880), (8244, 155280), (8640, 148163), (9160, 139752), (9705, 131904), (10305, 124224), (10352, 123660), (10992, 116460), (11646, 109920), (12366, 103520), (12940, 98928), (13740, 93168), (14656, 87345), (15528, 82440), (16488, 77640), (17469, 73280), (18320, 69876), (19410, 65952), (20610, 62112), (20704, 61830), (21984, 58230), (23292, 54960), (24732, 51760), (25880, 49464), (27480, 46584), (29115, 43968), (30915, 41408), (31056, 41220), (32976, 38820), (34938, 36640)]