21465600

素因数分解:

$2^9\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:87

約数の個数: 240

約数和(自身を含む): 78140832

約数和(自身を除く): 56675232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 43, 48, 50, 52, 60, 64, 65, 75, 78, 80, 86, 96, 100, 104, 120, 128, 129, 130, 150, 156, 160, 172, 192, 195, 200, 208, 215, 240, 256, 258, 260, 300, 312, 320, 325, 344, 384, 390, 400, 416, 430, 480, 512, 516, 520, 559, 600, 624, 640, 645, 650, 688, 768, 780, 800, 832, 860, 960, 975, 1032, 1040, 1075, 1118, 1200, 1248, 1280, 1290, 1300, 1376, 1536, 1560, 1600, 1664, 1677, 1720, 1920, 1950, 2064, 2080, 2150, 2236, 2400, 2496, 2560, 2580, 2600, 2752, 2795, 3120, 3200, 3225, 3328, 3354, 3440, 3840, 3900, 4128, 4160, 4300, 4472, 4800, 4992, 5160, 5200, 5504, 5590, 6240, 6400, 6450, 6656, 6708, 6880, 7680, 7800, 8256, 8320, 8385, 8600, 8944, 9600, 9984, 10320, 10400, 11008, 11180, 12480, 12800, 12900, 13416, 13760, 13975, 15600, 16512, 16640, 16770, 17200, 17888, 19200, 19968, 20640, 20800, 22016, 22360, 24960, 25800, 26832, 27520, 27950, 31200, 33024, 33280, 33540, 34400, 35776, 38400, 41280, 41600, 41925, 44720, 49920, 51600, 53664, 55040, 55900, 62400, 66048, 67080, 68800, 71552, 82560, 83200, 83850, 89440, 99840, 103200, 107328, 110080, 111800, 124800, 134160, 137600, 143104, 165120, 166400, 167700, 178880, 206400, 214656, 223600, 249600, 268320, 275200, 286208, 330240, 335400, 357760, 412800, 429312, 447200, 499200, 536640, 550400, 670800, 715520, 825600, 858624, 894400, 1073280, 1341600, 1431040, 1651200, 1788800, 2146560, 2683200, 3577600, 4293120, 5366400, 7155200, 10732800, 21465600]

約数ペア:

[(1, 21465600), (2, 10732800), (3, 7155200), (4, 5366400), (5, 4293120), (6, 3577600), (8, 2683200), (10, 2146560), (12, 1788800), (13, 1651200), (15, 1431040), (16, 1341600), (20, 1073280), (24, 894400), (25, 858624), (26, 825600), (30, 715520), (32, 670800), (39, 550400), (40, 536640), (43, 499200), (48, 447200), (50, 429312), (52, 412800), (60, 357760), (64, 335400), (65, 330240), (75, 286208), (78, 275200), (80, 268320), (86, 249600), (96, 223600), (100, 214656), (104, 206400), (120, 178880), (128, 167700), (129, 166400), (130, 165120), (150, 143104), (156, 137600), (160, 134160), (172, 124800), (192, 111800), (195, 110080), (200, 107328), (208, 103200), (215, 99840), (240, 89440), (256, 83850), (258, 83200), (260, 82560), (300, 71552), (312, 68800), (320, 67080), (325, 66048), (344, 62400), (384, 55900), (390, 55040), (400, 53664), (416, 51600), (430, 49920), (480, 44720), (512, 41925), (516, 41600), (520, 41280), (559, 38400), (600, 35776), (624, 34400), (640, 33540), (645, 33280), (650, 33024), (688, 31200), (768, 27950), (780, 27520), (800, 26832), (832, 25800), (860, 24960), (960, 22360), (975, 22016), (1032, 20800), (1040, 20640), (1075, 19968), (1118, 19200), (1200, 17888), (1248, 17200), (1280, 16770), (1290, 16640), (1300, 16512), (1376, 15600), (1536, 13975), (1560, 13760), (1600, 13416), (1664, 12900), (1677, 12800), (1720, 12480), (1920, 11180), (1950, 11008), (2064, 10400), (2080, 10320), (2150, 9984), (2236, 9600), (2400, 8944), (2496, 8600), (2560, 8385), (2580, 8320), (2600, 8256), (2752, 7800), (2795, 7680), (3120, 6880), (3200, 6708), (3225, 6656), (3328, 6450), (3354, 6400), (3440, 6240), (3840, 5590), (3900, 5504), (4128, 5200), (4160, 5160), (4300, 4992), (4472, 4800)]