18823680

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:91

約数の個数: 240

約数和(自身を含む): 70218720

約数和(自身を除く): 51395040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 43, 45, 48, 57, 60, 64, 72, 76, 80, 86, 90, 95, 96, 114, 120, 128, 129, 144, 152, 160, 171, 172, 180, 190, 192, 215, 228, 240, 256, 258, 285, 288, 304, 320, 342, 344, 360, 380, 384, 387, 430, 456, 480, 512, 516, 570, 576, 608, 640, 645, 684, 688, 720, 760, 768, 774, 817, 855, 860, 912, 960, 1032, 1140, 1152, 1216, 1280, 1290, 1368, 1376, 1440, 1520, 1536, 1548, 1634, 1710, 1720, 1824, 1920, 1935, 2064, 2280, 2304, 2432, 2451, 2560, 2580, 2736, 2752, 2880, 3040, 3096, 3268, 3420, 3440, 3648, 3840, 3870, 4085, 4128, 4560, 4608, 4864, 4902, 5160, 5472, 5504, 5760, 6080, 6192, 6536, 6840, 6880, 7296, 7353, 7680, 7740, 8170, 8256, 9120, 9728, 9804, 10320, 10944, 11008, 11520, 12160, 12255, 12384, 13072, 13680, 13760, 14592, 14706, 15480, 16340, 16512, 18240, 19608, 20640, 21888, 22016, 23040, 24320, 24510, 24768, 26144, 27360, 27520, 29184, 29412, 30960, 32680, 33024, 36480, 36765, 39216, 41280, 43776, 48640, 49020, 49536, 52288, 54720, 55040, 58824, 61920, 65360, 66048, 72960, 73530, 78432, 82560, 87552, 98040, 99072, 104576, 109440, 110080, 117648, 123840, 130720, 145920, 147060, 156864, 165120, 196080, 198144, 209152, 218880, 235296, 247680, 261440, 294120, 313728, 330240, 392160, 418304, 437760, 470592, 495360, 522880, 588240, 627456, 784320, 941184, 990720, 1045760, 1176480, 1254912, 1568640, 1882368, 2091520, 2352960, 3137280, 3764736, 4705920, 6274560, 9411840, 18823680]

約数ペア:

[(1, 18823680), (2, 9411840), (3, 6274560), (4, 4705920), (5, 3764736), (6, 3137280), (8, 2352960), (9, 2091520), (10, 1882368), (12, 1568640), (15, 1254912), (16, 1176480), (18, 1045760), (19, 990720), (20, 941184), (24, 784320), (30, 627456), (32, 588240), (36, 522880), (38, 495360), (40, 470592), (43, 437760), (45, 418304), (48, 392160), (57, 330240), (60, 313728), (64, 294120), (72, 261440), (76, 247680), (80, 235296), (86, 218880), (90, 209152), (95, 198144), (96, 196080), (114, 165120), (120, 156864), (128, 147060), (129, 145920), (144, 130720), (152, 123840), (160, 117648), (171, 110080), (172, 109440), (180, 104576), (190, 99072), (192, 98040), (215, 87552), (228, 82560), (240, 78432), (256, 73530), (258, 72960), (285, 66048), (288, 65360), (304, 61920), (320, 58824), (342, 55040), (344, 54720), (360, 52288), (380, 49536), (384, 49020), (387, 48640), (430, 43776), (456, 41280), (480, 39216), (512, 36765), (516, 36480), (570, 33024), (576, 32680), (608, 30960), (640, 29412), (645, 29184), (684, 27520), (688, 27360), (720, 26144), (760, 24768), (768, 24510), (774, 24320), (817, 23040), (855, 22016), (860, 21888), (912, 20640), (960, 19608), (1032, 18240), (1140, 16512), (1152, 16340), (1216, 15480), (1280, 14706), (1290, 14592), (1368, 13760), (1376, 13680), (1440, 13072), (1520, 12384), (1536, 12255), (1548, 12160), (1634, 11520), (1710, 11008), (1720, 10944), (1824, 10320), (1920, 9804), (1935, 9728), (2064, 9120), (2280, 8256), (2304, 8170), (2432, 7740), (2451, 7680), (2560, 7353), (2580, 7296), (2736, 6880), (2752, 6840), (2880, 6536), (3040, 6192), (3096, 6080), (3268, 5760), (3420, 5504), (3440, 5472), (3648, 5160), (3840, 4902), (3870, 4864), (4085, 4608), (4128, 4560)]