21981600

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 216

約数和(自身を含む): 80432352

約数和(自身を除く): 58450752

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 43, 45, 48, 50, 60, 71, 72, 75, 80, 86, 90, 96, 100, 120, 129, 142, 144, 150, 160, 172, 180, 200, 213, 215, 225, 240, 258, 284, 288, 300, 344, 355, 360, 387, 400, 426, 430, 450, 480, 516, 568, 600, 639, 645, 688, 710, 720, 774, 800, 852, 860, 900, 1032, 1065, 1075, 1136, 1200, 1278, 1290, 1376, 1420, 1440, 1548, 1704, 1720, 1775, 1800, 1935, 2064, 2130, 2150, 2272, 2400, 2556, 2580, 2840, 3053, 3096, 3195, 3225, 3408, 3440, 3550, 3600, 3870, 4128, 4260, 4300, 5112, 5160, 5325, 5680, 6106, 6192, 6390, 6450, 6816, 6880, 7100, 7200, 7740, 8520, 8600, 9159, 9675, 10224, 10320, 10650, 11360, 12212, 12384, 12780, 12900, 14200, 15265, 15480, 15975, 17040, 17200, 18318, 19350, 20448, 20640, 21300, 24424, 25560, 25800, 27477, 28400, 30530, 30960, 31950, 34080, 34400, 36636, 38700, 42600, 45795, 48848, 51120, 51600, 54954, 56800, 61060, 61920, 63900, 73272, 76325, 77400, 85200, 91590, 97696, 102240, 103200, 109908, 122120, 127800, 137385, 146544, 152650, 154800, 170400, 183180, 219816, 228975, 244240, 255600, 274770, 293088, 305300, 309600, 366360, 439632, 457950, 488480, 511200, 549540, 610600, 686925, 732720, 879264, 915900, 1099080, 1221200, 1373850, 1465440, 1831800, 2198160, 2442400, 2747700, 3663600, 4396320, 5495400, 7327200, 10990800, 21981600]

約数ペア:

[(1, 21981600), (2, 10990800), (3, 7327200), (4, 5495400), (5, 4396320), (6, 3663600), (8, 2747700), (9, 2442400), (10, 2198160), (12, 1831800), (15, 1465440), (16, 1373850), (18, 1221200), (20, 1099080), (24, 915900), (25, 879264), (30, 732720), (32, 686925), (36, 610600), (40, 549540), (43, 511200), (45, 488480), (48, 457950), (50, 439632), (60, 366360), (71, 309600), (72, 305300), (75, 293088), (80, 274770), (86, 255600), (90, 244240), (96, 228975), (100, 219816), (120, 183180), (129, 170400), (142, 154800), (144, 152650), (150, 146544), (160, 137385), (172, 127800), (180, 122120), (200, 109908), (213, 103200), (215, 102240), (225, 97696), (240, 91590), (258, 85200), (284, 77400), (288, 76325), (300, 73272), (344, 63900), (355, 61920), (360, 61060), (387, 56800), (400, 54954), (426, 51600), (430, 51120), (450, 48848), (480, 45795), (516, 42600), (568, 38700), (600, 36636), (639, 34400), (645, 34080), (688, 31950), (710, 30960), (720, 30530), (774, 28400), (800, 27477), (852, 25800), (860, 25560), (900, 24424), (1032, 21300), (1065, 20640), (1075, 20448), (1136, 19350), (1200, 18318), (1278, 17200), (1290, 17040), (1376, 15975), (1420, 15480), (1440, 15265), (1548, 14200), (1704, 12900), (1720, 12780), (1775, 12384), (1800, 12212), (1935, 11360), (2064, 10650), (2130, 10320), (2150, 10224), (2272, 9675), (2400, 9159), (2556, 8600), (2580, 8520), (2840, 7740), (3053, 7200), (3096, 7100), (3195, 6880), (3225, 6816), (3408, 6450), (3440, 6390), (3550, 6192), (3600, 6106), (3870, 5680), (4128, 5325), (4260, 5160), (4300, 5112)]