256308480

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1171}}^1$

素因数の和:1217

約数の個数: 216

約数和(自身を含む): 934271520

約数和(自身を除く): 677963040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 228, 240, 256, 285, 288, 304, 320, 342, 360, 380, 384, 456, 480, 570, 576, 608, 640, 684, 720, 760, 768, 855, 912, 960, 1140, 1152, 1171, 1216, 1280, 1368, 1440, 1520, 1710, 1824, 1920, 2280, 2304, 2342, 2432, 2736, 2880, 3040, 3420, 3513, 3648, 3840, 4560, 4684, 4864, 5472, 5760, 5855, 6080, 6840, 7026, 7296, 9120, 9368, 10539, 10944, 11520, 11710, 12160, 13680, 14052, 14592, 17565, 18240, 18736, 21078, 21888, 22249, 23420, 24320, 27360, 28104, 35130, 36480, 37472, 42156, 43776, 44498, 46840, 52695, 54720, 56208, 66747, 70260, 72960, 74944, 84312, 88996, 93680, 105390, 109440, 111245, 112416, 133494, 140520, 149888, 168624, 177992, 187360, 200241, 210780, 218880, 222490, 224832, 266988, 281040, 299776, 333735, 337248, 355984, 374720, 400482, 421560, 444980, 449664, 533976, 562080, 667470, 674496, 711968, 749440, 800964, 843120, 889960, 899328, 1001205, 1067952, 1124160, 1334940, 1348992, 1423936, 1498880, 1601928, 1686240, 1779920, 2002410, 2135904, 2248320, 2669880, 2697984, 2847872, 3203856, 3372480, 3559840, 4004820, 4271808, 4496640, 5339760, 5695744, 6407712, 6744960, 7119680, 8009640, 8543616, 10679520, 12815424, 13489920, 14239360, 16019280, 17087232, 21359040, 25630848, 28478720, 32038560, 42718080, 51261696, 64077120, 85436160, 128154240, 256308480]

約数ペア:

[(1, 256308480), (2, 128154240), (3, 85436160), (4, 64077120), (5, 51261696), (6, 42718080), (8, 32038560), (9, 28478720), (10, 25630848), (12, 21359040), (15, 17087232), (16, 16019280), (18, 14239360), (19, 13489920), (20, 12815424), (24, 10679520), (30, 8543616), (32, 8009640), (36, 7119680), (38, 6744960), (40, 6407712), (45, 5695744), (48, 5339760), (57, 4496640), (60, 4271808), (64, 4004820), (72, 3559840), (76, 3372480), (80, 3203856), (90, 2847872), (95, 2697984), (96, 2669880), (114, 2248320), (120, 2135904), (128, 2002410), (144, 1779920), (152, 1686240), (160, 1601928), (171, 1498880), (180, 1423936), (190, 1348992), (192, 1334940), (228, 1124160), (240, 1067952), (256, 1001205), (285, 899328), (288, 889960), (304, 843120), (320, 800964), (342, 749440), (360, 711968), (380, 674496), (384, 667470), (456, 562080), (480, 533976), (570, 449664), (576, 444980), (608, 421560), (640, 400482), (684, 374720), (720, 355984), (760, 337248), (768, 333735), (855, 299776), (912, 281040), (960, 266988), (1140, 224832), (1152, 222490), (1171, 218880), (1216, 210780), (1280, 200241), (1368, 187360), (1440, 177992), (1520, 168624), (1710, 149888), (1824, 140520), (1920, 133494), (2280, 112416), (2304, 111245), (2342, 109440), (2432, 105390), (2736, 93680), (2880, 88996), (3040, 84312), (3420, 74944), (3513, 72960), (3648, 70260), (3840, 66747), (4560, 56208), (4684, 54720), (4864, 52695), (5472, 46840), (5760, 44498), (5855, 43776), (6080, 42156), (6840, 37472), (7026, 36480), (7296, 35130), (9120, 28104), (9368, 27360), (10539, 24320), (10944, 23420), (11520, 22249), (11710, 21888), (12160, 21078), (13680, 18736), (14052, 18240), (14592, 17565)]