280458240

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:109

約数の個数: 264

約数和(自身を含む): 975682080

約数和(自身を除く): 695223840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 32, 38, 40, 48, 57, 60, 62, 64, 76, 80, 93, 95, 96, 114, 120, 124, 128, 152, 155, 160, 186, 190, 192, 228, 240, 248, 256, 285, 304, 310, 320, 372, 380, 384, 456, 465, 480, 496, 512, 570, 589, 608, 620, 640, 744, 760, 768, 912, 930, 960, 961, 992, 1024, 1140, 1178, 1216, 1240, 1280, 1488, 1520, 1536, 1767, 1824, 1860, 1920, 1922, 1984, 2280, 2356, 2432, 2480, 2560, 2883, 2945, 2976, 3040, 3072, 3534, 3648, 3720, 3840, 3844, 3968, 4560, 4712, 4805, 4864, 4960, 5120, 5766, 5890, 5952, 6080, 7068, 7296, 7440, 7680, 7688, 7936, 8835, 9120, 9424, 9610, 9728, 9920, 11532, 11780, 11904, 12160, 14136, 14415, 14592, 14880, 15360, 15376, 15872, 17670, 18240, 18259, 18848, 19220, 19456, 19840, 23064, 23560, 23808, 24320, 28272, 28830, 29184, 29760, 30752, 31744, 35340, 36480, 36518, 37696, 38440, 39680, 46128, 47120, 47616, 48640, 54777, 56544, 57660, 58368, 59520, 61504, 70680, 72960, 73036, 75392, 76880, 79360, 91295, 92256, 94240, 95232, 97280, 109554, 113088, 115320, 119040, 123008, 141360, 145920, 146072, 150784, 153760, 158720, 182590, 184512, 188480, 219108, 226176, 230640, 238080, 246016, 273885, 282720, 291840, 292144, 301568, 307520, 365180, 369024, 376960, 438216, 452352, 461280, 476160, 492032, 547770, 565440, 584288, 603136, 615040, 730360, 738048, 753920, 876432, 904704, 922560, 984064, 1095540, 1130880, 1168576, 1230080, 1460720, 1476096, 1507840, 1752864, 1809408, 1845120, 2191080, 2261760, 2337152, 2460160, 2921440, 2952192, 3015680, 3505728, 3690240, 4382160, 4523520, 4674304, 4920320, 5842880, 7011456, 7380480, 8764320, 9047040, 9348608, 11685760, 14022912, 14760960, 17528640, 18697216, 23371520, 28045824, 35057280, 46743040, 56091648, 70114560, 93486080, 140229120, 280458240]

約数ペア:

[(1, 280458240), (2, 140229120), (3, 93486080), (4, 70114560), (5, 56091648), (6, 46743040), (8, 35057280), (10, 28045824), (12, 23371520), (15, 18697216), (16, 17528640), (19, 14760960), (20, 14022912), (24, 11685760), (30, 9348608), (31, 9047040), (32, 8764320), (38, 7380480), (40, 7011456), (48, 5842880), (57, 4920320), (60, 4674304), (62, 4523520), (64, 4382160), (76, 3690240), (80, 3505728), (93, 3015680), (95, 2952192), (96, 2921440), (114, 2460160), (120, 2337152), (124, 2261760), (128, 2191080), (152, 1845120), (155, 1809408), (160, 1752864), (186, 1507840), (190, 1476096), (192, 1460720), (228, 1230080), (240, 1168576), (248, 1130880), (256, 1095540), (285, 984064), (304, 922560), (310, 904704), (320, 876432), (372, 753920), (380, 738048), (384, 730360), (456, 615040), (465, 603136), (480, 584288), (496, 565440), (512, 547770), (570, 492032), (589, 476160), (608, 461280), (620, 452352), (640, 438216), (744, 376960), (760, 369024), (768, 365180), (912, 307520), (930, 301568), (960, 292144), (961, 291840), (992, 282720), (1024, 273885), (1140, 246016), (1178, 238080), (1216, 230640), (1240, 226176), (1280, 219108), (1488, 188480), (1520, 184512), (1536, 182590), (1767, 158720), (1824, 153760), (1860, 150784), (1920, 146072), (1922, 145920), (1984, 141360), (2280, 123008), (2356, 119040), (2432, 115320), (2480, 113088), (2560, 109554), (2883, 97280), (2945, 95232), (2976, 94240), (3040, 92256), (3072, 91295), (3534, 79360), (3648, 76880), (3720, 75392), (3840, 73036), (3844, 72960), (3968, 70680), (4560, 61504), (4712, 59520), (4805, 58368), (4864, 57660), (4960, 56544), (5120, 54777), (5766, 48640), (5890, 47616), (5952, 47120), (6080, 46128), (7068, 39680), (7296, 38440), (7440, 37696), (7680, 36518), (7688, 36480), (7936, 35340), (8835, 31744), (9120, 30752), (9424, 29760), (9610, 29184), (9728, 28830), (9920, 28272), (11532, 24320), (11780, 23808), (11904, 23560), (12160, 23064), (14136, 19840), (14415, 19456), (14592, 19220), (14880, 18848), (15360, 18259), (15376, 18240), (15872, 17670)]