18879840

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{1873}}^1$

素因数の和:1901

約数の個数: 144

約数和(自身を含む): 73670688

約数和(自身を除く): 54790848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 1873, 2016, 2520, 3360, 3746, 5040, 5619, 7492, 9365, 10080, 11238, 13111, 14984, 16857, 18730, 22476, 26222, 28095, 29968, 33714, 37460, 39333, 44952, 52444, 56190, 59936, 65555, 67428, 74920, 78666, 84285, 89904, 104888, 112380, 117999, 131110, 134856, 149840, 157332, 168570, 179808, 196665, 209776, 224760, 235998, 262220, 269712, 299680, 314664, 337140, 393330, 419552, 449520, 471996, 524440, 539424, 589995, 629328, 674280, 786660, 899040, 943992, 1048880, 1179990, 1258656, 1348560, 1573320, 1887984, 2097760, 2359980, 2697120, 3146640, 3775968, 4719960, 6293280, 9439920, 18879840]

約数ペア:

[(1, 18879840), (2, 9439920), (3, 6293280), (4, 4719960), (5, 3775968), (6, 3146640), (7, 2697120), (8, 2359980), (9, 2097760), (10, 1887984), (12, 1573320), (14, 1348560), (15, 1258656), (16, 1179990), (18, 1048880), (20, 943992), (21, 899040), (24, 786660), (28, 674280), (30, 629328), (32, 589995), (35, 539424), (36, 524440), (40, 471996), (42, 449520), (45, 419552), (48, 393330), (56, 337140), (60, 314664), (63, 299680), (70, 269712), (72, 262220), (80, 235998), (84, 224760), (90, 209776), (96, 196665), (105, 179808), (112, 168570), (120, 157332), (126, 149840), (140, 134856), (144, 131110), (160, 117999), (168, 112380), (180, 104888), (210, 89904), (224, 84285), (240, 78666), (252, 74920), (280, 67428), (288, 65555), (315, 59936), (336, 56190), (360, 52444), (420, 44952), (480, 39333), (504, 37460), (560, 33714), (630, 29968), (672, 28095), (720, 26222), (840, 22476), (1008, 18730), (1120, 16857), (1260, 14984), (1440, 13111), (1680, 11238), (1873, 10080), (2016, 9365), (2520, 7492), (3360, 5619), (3746, 5040)]