18988800

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:95

約数の個数: 216

約数和(自身を含む): 66912384

約数和(自身を除く): 47923584

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 25, 30, 32, 40, 43, 46, 48, 50, 60, 64, 69, 75, 80, 86, 92, 96, 100, 115, 120, 128, 129, 138, 150, 160, 172, 184, 192, 200, 215, 230, 240, 256, 258, 276, 300, 320, 344, 345, 368, 384, 400, 430, 460, 480, 516, 552, 575, 600, 640, 645, 688, 690, 736, 768, 800, 860, 920, 960, 989, 1032, 1075, 1104, 1150, 1200, 1280, 1290, 1376, 1380, 1472, 1600, 1720, 1725, 1840, 1920, 1978, 2064, 2150, 2208, 2300, 2400, 2580, 2752, 2760, 2944, 2967, 3200, 3225, 3440, 3450, 3680, 3840, 3956, 4128, 4300, 4416, 4600, 4800, 4945, 5160, 5504, 5520, 5888, 5934, 6400, 6450, 6880, 6900, 7360, 7912, 8256, 8600, 8832, 9200, 9600, 9890, 10320, 11008, 11040, 11868, 12900, 13760, 13800, 14720, 14835, 15824, 16512, 17200, 17664, 18400, 19200, 19780, 20640, 22080, 23736, 24725, 25800, 27520, 27600, 29440, 29670, 31648, 33024, 34400, 36800, 39560, 41280, 44160, 47472, 49450, 51600, 55040, 55200, 59340, 63296, 68800, 73600, 74175, 79120, 82560, 88320, 94944, 98900, 103200, 110400, 118680, 126592, 137600, 147200, 148350, 158240, 165120, 189888, 197800, 206400, 220800, 237360, 253184, 275200, 296700, 316480, 379776, 395600, 412800, 441600, 474720, 593400, 632960, 759552, 791200, 825600, 949440, 1186800, 1265920, 1582400, 1898880, 2373600, 3164800, 3797760, 4747200, 6329600, 9494400, 18988800]

約数ペア:

[(1, 18988800), (2, 9494400), (3, 6329600), (4, 4747200), (5, 3797760), (6, 3164800), (8, 2373600), (10, 1898880), (12, 1582400), (15, 1265920), (16, 1186800), (20, 949440), (23, 825600), (24, 791200), (25, 759552), (30, 632960), (32, 593400), (40, 474720), (43, 441600), (46, 412800), (48, 395600), (50, 379776), (60, 316480), (64, 296700), (69, 275200), (75, 253184), (80, 237360), (86, 220800), (92, 206400), (96, 197800), (100, 189888), (115, 165120), (120, 158240), (128, 148350), (129, 147200), (138, 137600), (150, 126592), (160, 118680), (172, 110400), (184, 103200), (192, 98900), (200, 94944), (215, 88320), (230, 82560), (240, 79120), (256, 74175), (258, 73600), (276, 68800), (300, 63296), (320, 59340), (344, 55200), (345, 55040), (368, 51600), (384, 49450), (400, 47472), (430, 44160), (460, 41280), (480, 39560), (516, 36800), (552, 34400), (575, 33024), (600, 31648), (640, 29670), (645, 29440), (688, 27600), (690, 27520), (736, 25800), (768, 24725), (800, 23736), (860, 22080), (920, 20640), (960, 19780), (989, 19200), (1032, 18400), (1075, 17664), (1104, 17200), (1150, 16512), (1200, 15824), (1280, 14835), (1290, 14720), (1376, 13800), (1380, 13760), (1472, 12900), (1600, 11868), (1720, 11040), (1725, 11008), (1840, 10320), (1920, 9890), (1978, 9600), (2064, 9200), (2150, 8832), (2208, 8600), (2300, 8256), (2400, 7912), (2580, 7360), (2752, 6900), (2760, 6880), (2944, 6450), (2967, 6400), (3200, 5934), (3225, 5888), (3440, 5520), (3450, 5504), (3680, 5160), (3840, 4945), (3956, 4800), (4128, 4600), (4300, 4416)]