81816960

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1056

約数の個数: 128

約数和(自身を含む): 267125760

約数和(自身を除く): 185308800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 128, 129, 160, 172, 192, 215, 240, 258, 320, 344, 384, 430, 480, 516, 640, 645, 688, 860, 960, 991, 1032, 1290, 1376, 1720, 1920, 1982, 2064, 2580, 2752, 2973, 3440, 3964, 4128, 4955, 5160, 5504, 5946, 6880, 7928, 8256, 9910, 10320, 11892, 13760, 14865, 15856, 16512, 19820, 20640, 23784, 27520, 29730, 31712, 39640, 41280, 42613, 47568, 59460, 63424, 79280, 82560, 85226, 95136, 118920, 126848, 127839, 158560, 170452, 190272, 213065, 237840, 255678, 317120, 340904, 380544, 426130, 475680, 511356, 634240, 639195, 681808, 852260, 951360, 1022712, 1278390, 1363616, 1704520, 1902720, 2045424, 2556780, 2727232, 3409040, 4090848, 5113560, 5454464, 6818080, 8181696, 10227120, 13636160, 16363392, 20454240, 27272320, 40908480, 81816960]

約数ペア:

[(1, 81816960), (2, 40908480), (3, 27272320), (4, 20454240), (5, 16363392), (6, 13636160), (8, 10227120), (10, 8181696), (12, 6818080), (15, 5454464), (16, 5113560), (20, 4090848), (24, 3409040), (30, 2727232), (32, 2556780), (40, 2045424), (43, 1902720), (48, 1704520), (60, 1363616), (64, 1278390), (80, 1022712), (86, 951360), (96, 852260), (120, 681808), (128, 639195), (129, 634240), (160, 511356), (172, 475680), (192, 426130), (215, 380544), (240, 340904), (258, 317120), (320, 255678), (344, 237840), (384, 213065), (430, 190272), (480, 170452), (516, 158560), (640, 127839), (645, 126848), (688, 118920), (860, 95136), (960, 85226), (991, 82560), (1032, 79280), (1290, 63424), (1376, 59460), (1720, 47568), (1920, 42613), (1982, 41280), (2064, 39640), (2580, 31712), (2752, 29730), (2973, 27520), (3440, 23784), (3964, 20640), (4128, 19820), (4955, 16512), (5160, 15856), (5504, 14865), (5946, 13760), (6880, 11892), (7928, 10320), (8256, 9910)]