18898560

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:235

約数の個数: 192

約数和(自身を含む): 69455880

約数和(自身を除く): 50557320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 120, 128, 136, 144, 153, 160, 170, 180, 192, 193, 204, 240, 255, 272, 288, 306, 320, 340, 360, 384, 386, 408, 480, 510, 544, 576, 579, 612, 640, 680, 720, 765, 772, 816, 960, 965, 1020, 1088, 1152, 1158, 1224, 1360, 1440, 1530, 1544, 1632, 1737, 1920, 1930, 2040, 2176, 2316, 2448, 2720, 2880, 2895, 3060, 3088, 3264, 3281, 3474, 3860, 4080, 4632, 4896, 5440, 5760, 5790, 6120, 6176, 6528, 6562, 6948, 7720, 8160, 8685, 9264, 9792, 9843, 10880, 11580, 12240, 12352, 13124, 13896, 15440, 16320, 16405, 17370, 18528, 19584, 19686, 23160, 24480, 24704, 26248, 27792, 29529, 30880, 32640, 32810, 34740, 37056, 39372, 46320, 48960, 49215, 52496, 55584, 59058, 61760, 65620, 69480, 74112, 78744, 92640, 97920, 98430, 104992, 111168, 118116, 123520, 131240, 138960, 147645, 157488, 185280, 196860, 209984, 222336, 236232, 262480, 277920, 295290, 314976, 370560, 393720, 419968, 472464, 524960, 555840, 590580, 629952, 787440, 944928, 1049920, 1111680, 1181160, 1259904, 1574880, 1889856, 2099840, 2362320, 3149760, 3779712, 4724640, 6299520, 9449280, 18898560]

約数ペア:

[(1, 18898560), (2, 9449280), (3, 6299520), (4, 4724640), (5, 3779712), (6, 3149760), (8, 2362320), (9, 2099840), (10, 1889856), (12, 1574880), (15, 1259904), (16, 1181160), (17, 1111680), (18, 1049920), (20, 944928), (24, 787440), (30, 629952), (32, 590580), (34, 555840), (36, 524960), (40, 472464), (45, 419968), (48, 393720), (51, 370560), (60, 314976), (64, 295290), (68, 277920), (72, 262480), (80, 236232), (85, 222336), (90, 209984), (96, 196860), (102, 185280), (120, 157488), (128, 147645), (136, 138960), (144, 131240), (153, 123520), (160, 118116), (170, 111168), (180, 104992), (192, 98430), (193, 97920), (204, 92640), (240, 78744), (255, 74112), (272, 69480), (288, 65620), (306, 61760), (320, 59058), (340, 55584), (360, 52496), (384, 49215), (386, 48960), (408, 46320), (480, 39372), (510, 37056), (544, 34740), (576, 32810), (579, 32640), (612, 30880), (640, 29529), (680, 27792), (720, 26248), (765, 24704), (772, 24480), (816, 23160), (960, 19686), (965, 19584), (1020, 18528), (1088, 17370), (1152, 16405), (1158, 16320), (1224, 15440), (1360, 13896), (1440, 13124), (1530, 12352), (1544, 12240), (1632, 11580), (1737, 10880), (1920, 9843), (1930, 9792), (2040, 9264), (2176, 8685), (2316, 8160), (2448, 7720), (2720, 6948), (2880, 6562), (2895, 6528), (3060, 6176), (3088, 6120), (3264, 5790), (3281, 5760), (3474, 5440), (3860, 4896), (4080, 4632)]