19987230720

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5333}}^1$

素因数の和:5426

約数の個数: 208

約数和(自身を含む): 65011901472

約数和(自身を除く): 45024670752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 128, 160, 183, 192, 240, 244, 256, 305, 320, 366, 384, 480, 488, 512, 610, 640, 732, 768, 915, 960, 976, 1024, 1220, 1280, 1464, 1536, 1830, 1920, 1952, 2048, 2440, 2560, 2928, 3072, 3660, 3840, 3904, 4096, 4880, 5120, 5333, 5856, 6144, 7320, 7680, 7808, 9760, 10240, 10666, 11712, 12288, 14640, 15360, 15616, 15999, 19520, 20480, 21332, 23424, 26665, 29280, 30720, 31232, 31998, 39040, 42664, 46848, 53330, 58560, 61440, 62464, 63996, 78080, 79995, 85328, 93696, 106660, 117120, 124928, 127992, 156160, 159990, 170656, 187392, 213320, 234240, 249856, 255984, 312320, 319980, 325313, 341312, 374784, 426640, 468480, 511968, 624640, 639960, 650626, 682624, 749568, 853280, 936960, 975939, 1023936, 1249280, 1279920, 1301252, 1365248, 1626565, 1706560, 1873920, 1951878, 2047872, 2559840, 2602504, 2730496, 3253130, 3413120, 3747840, 3903756, 4095744, 4879695, 5119680, 5205008, 5460992, 6506260, 6826240, 7807512, 8191488, 9759390, 10239360, 10410016, 10921984, 13012520, 13652480, 15615024, 16382976, 19518780, 20478720, 20820032, 21843968, 26025040, 27304960, 31230048, 32765952, 39037560, 40957440, 41640064, 52050080, 54609920, 62460096, 65531904, 78075120, 81914880, 83280128, 104100160, 109219840, 124920192, 156150240, 163829760, 166560256, 208200320, 249840384, 312300480, 327659520, 333120512, 416400640, 499680768, 624600960, 666241024, 832801280, 999361536, 1249201920, 1332482048, 1665602560, 1998723072, 2498403840, 3331205120, 3997446144, 4996807680, 6662410240, 9993615360, 19987230720]

約数ペア:

[(1, 19987230720), (2, 9993615360), (3, 6662410240), (4, 4996807680), (5, 3997446144), (6, 3331205120), (8, 2498403840), (10, 1998723072), (12, 1665602560), (15, 1332482048), (16, 1249201920), (20, 999361536), (24, 832801280), (30, 666241024), (32, 624600960), (40, 499680768), (48, 416400640), (60, 333120512), (61, 327659520), (64, 312300480), (80, 249840384), (96, 208200320), (120, 166560256), (122, 163829760), (128, 156150240), (160, 124920192), (183, 109219840), (192, 104100160), (240, 83280128), (244, 81914880), (256, 78075120), (305, 65531904), (320, 62460096), (366, 54609920), (384, 52050080), (480, 41640064), (488, 40957440), (512, 39037560), (610, 32765952), (640, 31230048), (732, 27304960), (768, 26025040), (915, 21843968), (960, 20820032), (976, 20478720), (1024, 19518780), (1220, 16382976), (1280, 15615024), (1464, 13652480), (1536, 13012520), (1830, 10921984), (1920, 10410016), (1952, 10239360), (2048, 9759390), (2440, 8191488), (2560, 7807512), (2928, 6826240), (3072, 6506260), (3660, 5460992), (3840, 5205008), (3904, 5119680), (4096, 4879695), (4880, 4095744), (5120, 3903756), (5333, 3747840), (5856, 3413120), (6144, 3253130), (7320, 2730496), (7680, 2602504), (7808, 2559840), (9760, 2047872), (10240, 1951878), (10666, 1873920), (11712, 1706560), (12288, 1626565), (14640, 1365248), (15360, 1301252), (15616, 1279920), (15999, 1249280), (19520, 1023936), (20480, 975939), (21332, 936960), (23424, 853280), (26665, 749568), (29280, 682624), (30720, 650626), (31232, 639960), (31998, 624640), (39040, 511968), (42664, 468480), (46848, 426640), (53330, 374784), (58560, 341312), (61440, 325313), (62464, 319980), (63996, 312320), (78080, 255984), (79995, 249856), (85328, 234240), (93696, 213320), (106660, 187392), (117120, 170656), (124928, 159990), (127992, 156160)]