28212480

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 216

約数和(自身を含む): 102036480

約数和(自身を除く): 73824000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 79, 80, 90, 93, 96, 120, 124, 128, 144, 155, 158, 160, 180, 186, 192, 237, 240, 248, 256, 279, 288, 310, 316, 320, 360, 372, 384, 395, 465, 474, 480, 496, 558, 576, 620, 632, 640, 711, 720, 744, 768, 790, 930, 948, 960, 992, 1116, 1152, 1185, 1240, 1264, 1280, 1395, 1422, 1440, 1488, 1580, 1860, 1896, 1920, 1984, 2232, 2304, 2370, 2449, 2480, 2528, 2790, 2844, 2880, 2976, 3160, 3555, 3720, 3792, 3840, 3968, 4464, 4740, 4898, 4960, 5056, 5580, 5688, 5760, 5952, 6320, 7110, 7347, 7440, 7584, 7936, 8928, 9480, 9796, 9920, 10112, 11160, 11376, 11520, 11904, 12245, 12640, 14220, 14694, 14880, 15168, 17856, 18960, 19592, 19840, 20224, 22041, 22320, 22752, 23808, 24490, 25280, 28440, 29388, 29760, 30336, 35712, 36735, 37920, 39184, 39680, 44082, 44640, 45504, 48980, 50560, 56880, 58776, 59520, 60672, 71424, 73470, 75840, 78368, 88164, 89280, 91008, 97960, 101120, 110205, 113760, 117552, 119040, 146940, 151680, 156736, 176328, 178560, 182016, 195920, 220410, 227520, 235104, 293880, 303360, 313472, 352656, 357120, 391840, 440820, 455040, 470208, 587760, 626944, 705312, 783680, 881640, 910080, 940416, 1175520, 1410624, 1567360, 1763280, 1880832, 2351040, 2821248, 3134720, 3526560, 4702080, 5642496, 7053120, 9404160, 14106240, 28212480]

約数ペア:

[(1, 28212480), (2, 14106240), (3, 9404160), (4, 7053120), (5, 5642496), (6, 4702080), (8, 3526560), (9, 3134720), (10, 2821248), (12, 2351040), (15, 1880832), (16, 1763280), (18, 1567360), (20, 1410624), (24, 1175520), (30, 940416), (31, 910080), (32, 881640), (36, 783680), (40, 705312), (45, 626944), (48, 587760), (60, 470208), (62, 455040), (64, 440820), (72, 391840), (79, 357120), (80, 352656), (90, 313472), (93, 303360), (96, 293880), (120, 235104), (124, 227520), (128, 220410), (144, 195920), (155, 182016), (158, 178560), (160, 176328), (180, 156736), (186, 151680), (192, 146940), (237, 119040), (240, 117552), (248, 113760), (256, 110205), (279, 101120), (288, 97960), (310, 91008), (316, 89280), (320, 88164), (360, 78368), (372, 75840), (384, 73470), (395, 71424), (465, 60672), (474, 59520), (480, 58776), (496, 56880), (558, 50560), (576, 48980), (620, 45504), (632, 44640), (640, 44082), (711, 39680), (720, 39184), (744, 37920), (768, 36735), (790, 35712), (930, 30336), (948, 29760), (960, 29388), (992, 28440), (1116, 25280), (1152, 24490), (1185, 23808), (1240, 22752), (1264, 22320), (1280, 22041), (1395, 20224), (1422, 19840), (1440, 19592), (1488, 18960), (1580, 17856), (1860, 15168), (1896, 14880), (1920, 14694), (1984, 14220), (2232, 12640), (2304, 12245), (2370, 11904), (2449, 11520), (2480, 11376), (2528, 11160), (2790, 10112), (2844, 9920), (2880, 9796), (2976, 9480), (3160, 8928), (3555, 7936), (3720, 7584), (3792, 7440), (3840, 7347), (3968, 7110), (4464, 6320), (4740, 5952), (4898, 5760), (4960, 5688), (5056, 5580)]