256008960

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:411

約数の個数: 216

約数和(自身を含む): 901109664

約数和(自身を除く): 645100704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 128, 142, 144, 160, 180, 192, 213, 240, 256, 284, 288, 313, 320, 355, 360, 384, 426, 480, 568, 576, 626, 639, 640, 710, 720, 768, 852, 939, 960, 1065, 1136, 1152, 1252, 1278, 1280, 1420, 1440, 1565, 1704, 1878, 1920, 2130, 2272, 2304, 2504, 2556, 2817, 2840, 2880, 3130, 3195, 3408, 3756, 3840, 4260, 4544, 4695, 5008, 5112, 5634, 5680, 5760, 6260, 6390, 6816, 7512, 8520, 9088, 9390, 10016, 10224, 11268, 11360, 11520, 12520, 12780, 13632, 14085, 15024, 17040, 18176, 18780, 20032, 20448, 22223, 22536, 22720, 25040, 25560, 27264, 28170, 30048, 34080, 37560, 40064, 40896, 44446, 45072, 45440, 50080, 51120, 54528, 56340, 60096, 66669, 68160, 75120, 80128, 81792, 88892, 90144, 90880, 100160, 102240, 111115, 112680, 120192, 133338, 136320, 150240, 163584, 177784, 180288, 200007, 200320, 204480, 222230, 225360, 240384, 266676, 272640, 300480, 333345, 355568, 360576, 400014, 400640, 408960, 444460, 450720, 533352, 600960, 666690, 711136, 721152, 800028, 817920, 888920, 901440, 1000035, 1066704, 1201920, 1333380, 1422272, 1600056, 1777840, 1802880, 2000070, 2133408, 2666760, 2844544, 3200112, 3555680, 3605760, 4000140, 4266816, 5333520, 5689088, 6400224, 7111360, 8000280, 8533632, 10667040, 12800448, 14222720, 16000560, 17067264, 21334080, 25600896, 28445440, 32001120, 42668160, 51201792, 64002240, 85336320, 128004480, 256008960]

約数ペア:

[(1, 256008960), (2, 128004480), (3, 85336320), (4, 64002240), (5, 51201792), (6, 42668160), (8, 32001120), (9, 28445440), (10, 25600896), (12, 21334080), (15, 17067264), (16, 16000560), (18, 14222720), (20, 12800448), (24, 10667040), (30, 8533632), (32, 8000280), (36, 7111360), (40, 6400224), (45, 5689088), (48, 5333520), (60, 4266816), (64, 4000140), (71, 3605760), (72, 3555680), (80, 3200112), (90, 2844544), (96, 2666760), (120, 2133408), (128, 2000070), (142, 1802880), (144, 1777840), (160, 1600056), (180, 1422272), (192, 1333380), (213, 1201920), (240, 1066704), (256, 1000035), (284, 901440), (288, 888920), (313, 817920), (320, 800028), (355, 721152), (360, 711136), (384, 666690), (426, 600960), (480, 533352), (568, 450720), (576, 444460), (626, 408960), (639, 400640), (640, 400014), (710, 360576), (720, 355568), (768, 333345), (852, 300480), (939, 272640), (960, 266676), (1065, 240384), (1136, 225360), (1152, 222230), (1252, 204480), (1278, 200320), (1280, 200007), (1420, 180288), (1440, 177784), (1565, 163584), (1704, 150240), (1878, 136320), (1920, 133338), (2130, 120192), (2272, 112680), (2304, 111115), (2504, 102240), (2556, 100160), (2817, 90880), (2840, 90144), (2880, 88892), (3130, 81792), (3195, 80128), (3408, 75120), (3756, 68160), (3840, 66669), (4260, 60096), (4544, 56340), (4695, 54528), (5008, 51120), (5112, 50080), (5634, 45440), (5680, 45072), (5760, 44446), (6260, 40896), (6390, 40064), (6816, 37560), (7512, 34080), (8520, 30048), (9088, 28170), (9390, 27264), (10016, 25560), (10224, 25040), (11268, 22720), (11360, 22536), (11520, 22223), (12520, 20448), (12780, 20032), (13632, 18780), (14085, 18176), (15024, 17040)]