18318720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:105

約数の個数: 256

約数和(自身を含む): 70502400

約数和(自身を除く): 52183680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 32, 35, 40, 42, 47, 48, 56, 58, 60, 64, 70, 80, 84, 87, 94, 96, 105, 112, 116, 120, 128, 140, 141, 145, 160, 168, 174, 188, 192, 203, 210, 224, 232, 235, 240, 280, 282, 290, 320, 329, 336, 348, 376, 384, 406, 420, 435, 448, 464, 470, 480, 560, 564, 580, 609, 640, 658, 672, 696, 705, 752, 812, 840, 870, 896, 928, 940, 960, 987, 1015, 1120, 1128, 1160, 1218, 1316, 1344, 1363, 1392, 1410, 1504, 1624, 1645, 1680, 1740, 1856, 1880, 1920, 1974, 2030, 2240, 2256, 2320, 2436, 2632, 2688, 2726, 2784, 2820, 3008, 3045, 3248, 3290, 3360, 3480, 3712, 3760, 3948, 4060, 4089, 4480, 4512, 4640, 4872, 4935, 5264, 5452, 5568, 5640, 6016, 6090, 6496, 6580, 6720, 6815, 6960, 7520, 7896, 8120, 8178, 9024, 9280, 9541, 9744, 9870, 10528, 10904, 11136, 11280, 12180, 12992, 13160, 13440, 13630, 13920, 15040, 15792, 16240, 16356, 18048, 18560, 19082, 19488, 19740, 20445, 21056, 21808, 22560, 24360, 25984, 26320, 27260, 27840, 28623, 30080, 31584, 32480, 32712, 38164, 38976, 39480, 40890, 42112, 43616, 45120, 47705, 48720, 52640, 54520, 55680, 57246, 63168, 64960, 65424, 76328, 77952, 78960, 81780, 87232, 90240, 95410, 97440, 105280, 109040, 114492, 126336, 129920, 130848, 143115, 152656, 157920, 163560, 174464, 190820, 194880, 210560, 218080, 228984, 261696, 286230, 305312, 315840, 327120, 381640, 389760, 436160, 457968, 523392, 572460, 610624, 631680, 654240, 763280, 872320, 915936, 1144920, 1221248, 1308480, 1526560, 1831872, 2289840, 2616960, 3053120, 3663744, 4579680, 6106240, 9159360, 18318720]

約数ペア:

[(1, 18318720), (2, 9159360), (3, 6106240), (4, 4579680), (5, 3663744), (6, 3053120), (7, 2616960), (8, 2289840), (10, 1831872), (12, 1526560), (14, 1308480), (15, 1221248), (16, 1144920), (20, 915936), (21, 872320), (24, 763280), (28, 654240), (29, 631680), (30, 610624), (32, 572460), (35, 523392), (40, 457968), (42, 436160), (47, 389760), (48, 381640), (56, 327120), (58, 315840), (60, 305312), (64, 286230), (70, 261696), (80, 228984), (84, 218080), (87, 210560), (94, 194880), (96, 190820), (105, 174464), (112, 163560), (116, 157920), (120, 152656), (128, 143115), (140, 130848), (141, 129920), (145, 126336), (160, 114492), (168, 109040), (174, 105280), (188, 97440), (192, 95410), (203, 90240), (210, 87232), (224, 81780), (232, 78960), (235, 77952), (240, 76328), (280, 65424), (282, 64960), (290, 63168), (320, 57246), (329, 55680), (336, 54520), (348, 52640), (376, 48720), (384, 47705), (406, 45120), (420, 43616), (435, 42112), (448, 40890), (464, 39480), (470, 38976), (480, 38164), (560, 32712), (564, 32480), (580, 31584), (609, 30080), (640, 28623), (658, 27840), (672, 27260), (696, 26320), (705, 25984), (752, 24360), (812, 22560), (840, 21808), (870, 21056), (896, 20445), (928, 19740), (940, 19488), (960, 19082), (987, 18560), (1015, 18048), (1120, 16356), (1128, 16240), (1160, 15792), (1218, 15040), (1316, 13920), (1344, 13630), (1363, 13440), (1392, 13160), (1410, 12992), (1504, 12180), (1624, 11280), (1645, 11136), (1680, 10904), (1740, 10528), (1856, 9870), (1880, 9744), (1920, 9541), (1974, 9280), (2030, 9024), (2240, 8178), (2256, 8120), (2320, 7896), (2436, 7520), (2632, 6960), (2688, 6815), (2726, 6720), (2784, 6580), (2820, 6496), (3008, 6090), (3045, 6016), (3248, 5640), (3290, 5568), (3360, 5452), (3480, 5264), (3712, 4935), (3760, 4872), (3948, 4640), (4060, 4512), (4089, 4480)]