28782720

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 192

約数和(自身を含む): 105019200

約数和(自身を除く): 76236480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 228, 240, 263, 285, 288, 304, 320, 342, 360, 380, 384, 456, 480, 526, 570, 576, 608, 640, 684, 720, 760, 789, 855, 912, 960, 1052, 1140, 1152, 1216, 1315, 1368, 1440, 1520, 1578, 1710, 1824, 1920, 2104, 2280, 2367, 2432, 2630, 2736, 2880, 3040, 3156, 3420, 3648, 3945, 4208, 4560, 4734, 4997, 5260, 5472, 5760, 6080, 6312, 6840, 7296, 7890, 8416, 9120, 9468, 9994, 10520, 10944, 11835, 12160, 12624, 13680, 14991, 15780, 16832, 18240, 18936, 19988, 21040, 21888, 23670, 24985, 25248, 27360, 29982, 31560, 33664, 36480, 37872, 39976, 42080, 44973, 47340, 49970, 50496, 54720, 59964, 63120, 74955, 75744, 79952, 84160, 89946, 94680, 99940, 100992, 109440, 119928, 126240, 149910, 151488, 159904, 168320, 179892, 189360, 199880, 224865, 239856, 252480, 299820, 302976, 319808, 359784, 378720, 399760, 449730, 479712, 504960, 599640, 639616, 719568, 757440, 799520, 899460, 959424, 1199280, 1439136, 1514880, 1599040, 1798920, 1918848, 2398560, 2878272, 3198080, 3597840, 4797120, 5756544, 7195680, 9594240, 14391360, 28782720]

約数ペア:

[(1, 28782720), (2, 14391360), (3, 9594240), (4, 7195680), (5, 5756544), (6, 4797120), (8, 3597840), (9, 3198080), (10, 2878272), (12, 2398560), (15, 1918848), (16, 1798920), (18, 1599040), (19, 1514880), (20, 1439136), (24, 1199280), (30, 959424), (32, 899460), (36, 799520), (38, 757440), (40, 719568), (45, 639616), (48, 599640), (57, 504960), (60, 479712), (64, 449730), (72, 399760), (76, 378720), (80, 359784), (90, 319808), (95, 302976), (96, 299820), (114, 252480), (120, 239856), (128, 224865), (144, 199880), (152, 189360), (160, 179892), (171, 168320), (180, 159904), (190, 151488), (192, 149910), (228, 126240), (240, 119928), (263, 109440), (285, 100992), (288, 99940), (304, 94680), (320, 89946), (342, 84160), (360, 79952), (380, 75744), (384, 74955), (456, 63120), (480, 59964), (526, 54720), (570, 50496), (576, 49970), (608, 47340), (640, 44973), (684, 42080), (720, 39976), (760, 37872), (789, 36480), (855, 33664), (912, 31560), (960, 29982), (1052, 27360), (1140, 25248), (1152, 24985), (1216, 23670), (1315, 21888), (1368, 21040), (1440, 19988), (1520, 18936), (1578, 18240), (1710, 16832), (1824, 15780), (1920, 14991), (2104, 13680), (2280, 12624), (2367, 12160), (2432, 11835), (2630, 10944), (2736, 10520), (2880, 9994), (3040, 9468), (3156, 9120), (3420, 8416), (3648, 7890), (3945, 7296), (4208, 6840), (4560, 6312), (4734, 6080), (4997, 5760), (5260, 5472)]