77921280

素因数分解:

$2^{10}\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:139

約数の個数: 264

約数和(自身を含む): 287398800

約数和(自身を除く): 209477520

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, 89, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 178, 180, 190, 192, 228, 240, 256, 267, 285, 288, 304, 320, 342, 356, 360, 380, 384, 445, 456, 480, 512, 534, 570, 576, 608, 640, 684, 712, 720, 760, 768, 801, 855, 890, 912, 960, 1024, 1068, 1140, 1152, 1216, 1280, 1335, 1368, 1424, 1440, 1520, 1536, 1602, 1691, 1710, 1780, 1824, 1920, 2136, 2280, 2304, 2432, 2560, 2670, 2736, 2848, 2880, 3040, 3072, 3204, 3382, 3420, 3560, 3648, 3840, 4005, 4272, 4560, 4608, 4864, 5073, 5120, 5340, 5472, 5696, 5760, 6080, 6408, 6764, 6840, 7120, 7296, 7680, 8010, 8455, 8544, 9120, 9216, 9728, 10146, 10680, 10944, 11392, 11520, 12160, 12816, 13528, 13680, 14240, 14592, 15219, 15360, 16020, 16910, 17088, 18240, 19456, 20292, 21360, 21888, 22784, 23040, 24320, 25365, 25632, 27056, 27360, 28480, 29184, 30438, 32040, 33820, 34176, 36480, 40584, 42720, 43776, 45568, 46080, 48640, 50730, 51264, 54112, 54720, 56960, 58368, 60876, 64080, 67640, 68352, 72960, 76095, 81168, 85440, 87552, 91136, 97280, 101460, 102528, 108224, 109440, 113920, 121752, 128160, 135280, 136704, 145920, 152190, 162336, 170880, 175104, 202920, 205056, 216448, 218880, 227840, 243504, 256320, 270560, 273408, 291840, 304380, 324672, 341760, 405840, 410112, 432896, 437760, 455680, 487008, 512640, 541120, 608760, 649344, 683520, 811680, 820224, 865792, 875520, 974016, 1025280, 1082240, 1217520, 1298688, 1367040, 1623360, 1731584, 1948032, 2050560, 2164480, 2435040, 2597376, 3246720, 3896064, 4101120, 4328960, 4870080, 5194752, 6493440, 7792128, 8657920, 9740160, 12986880, 15584256, 19480320, 25973760, 38960640, 77921280]

約数ペア:

[(1, 77921280), (2, 38960640), (3, 25973760), (4, 19480320), (5, 15584256), (6, 12986880), (8, 9740160), (9, 8657920), (10, 7792128), (12, 6493440), (15, 5194752), (16, 4870080), (18, 4328960), (19, 4101120), (20, 3896064), (24, 3246720), (30, 2597376), (32, 2435040), (36, 2164480), (38, 2050560), (40, 1948032), (45, 1731584), (48, 1623360), (57, 1367040), (60, 1298688), (64, 1217520), (72, 1082240), (76, 1025280), (80, 974016), (89, 875520), (90, 865792), (95, 820224), (96, 811680), (114, 683520), (120, 649344), (128, 608760), (144, 541120), (152, 512640), (160, 487008), (171, 455680), (178, 437760), (180, 432896), (190, 410112), (192, 405840), (228, 341760), (240, 324672), (256, 304380), (267, 291840), (285, 273408), (288, 270560), (304, 256320), (320, 243504), (342, 227840), (356, 218880), (360, 216448), (380, 205056), (384, 202920), (445, 175104), (456, 170880), (480, 162336), (512, 152190), (534, 145920), (570, 136704), (576, 135280), (608, 128160), (640, 121752), (684, 113920), (712, 109440), (720, 108224), (760, 102528), (768, 101460), (801, 97280), (855, 91136), (890, 87552), (912, 85440), (960, 81168), (1024, 76095), (1068, 72960), (1140, 68352), (1152, 67640), (1216, 64080), (1280, 60876), (1335, 58368), (1368, 56960), (1424, 54720), (1440, 54112), (1520, 51264), (1536, 50730), (1602, 48640), (1691, 46080), (1710, 45568), (1780, 43776), (1824, 42720), (1920, 40584), (2136, 36480), (2280, 34176), (2304, 33820), (2432, 32040), (2560, 30438), (2670, 29184), (2736, 28480), (2848, 27360), (2880, 27056), (3040, 25632), (3072, 25365), (3204, 24320), (3382, 23040), (3420, 22784), (3560, 21888), (3648, 21360), (3840, 20292), (4005, 19456), (4272, 18240), (4560, 17088), (4608, 16910), (4864, 16020), (5073, 15360), (5120, 15219), (5340, 14592), (5472, 14240), (5696, 13680), (5760, 13528), (6080, 12816), (6408, 12160), (6764, 11520), (6840, 11392), (7120, 10944), (7296, 10680), (7680, 10146), (8010, 9728), (8455, 9216), (8544, 9120)]