18637920

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^2$

素因数の和:114

約数の個数: 216

約数和(自身を含む): 74417616

約数和(自身を除く): 55779696

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, 43, 45, 48, 56, 60, 63, 70, 72, 80, 84, 86, 90, 96, 105, 112, 120, 126, 129, 140, 144, 160, 168, 172, 180, 210, 215, 224, 240, 252, 258, 280, 288, 301, 315, 336, 344, 360, 387, 420, 430, 480, 504, 516, 560, 602, 630, 645, 672, 688, 720, 774, 840, 860, 903, 1008, 1032, 1120, 1204, 1260, 1290, 1376, 1440, 1505, 1548, 1680, 1720, 1806, 1849, 1935, 2016, 2064, 2408, 2520, 2580, 2709, 3010, 3096, 3360, 3440, 3612, 3698, 3870, 4128, 4515, 4816, 5040, 5160, 5418, 5547, 6020, 6192, 6880, 7224, 7396, 7740, 9030, 9245, 9632, 10080, 10320, 10836, 11094, 12040, 12384, 12943, 13545, 14448, 14792, 15480, 16641, 18060, 18490, 20640, 21672, 22188, 24080, 25886, 27090, 27735, 28896, 29584, 30960, 33282, 36120, 36980, 38829, 43344, 44376, 48160, 51772, 54180, 55470, 59168, 61920, 64715, 66564, 72240, 73960, 77658, 83205, 86688, 88752, 103544, 108360, 110940, 116487, 129430, 133128, 144480, 147920, 155316, 166410, 177504, 194145, 207088, 216720, 221880, 232974, 258860, 266256, 295840, 310632, 332820, 388290, 414176, 433440, 443760, 465948, 517720, 532512, 582435, 621264, 665640, 776580, 887520, 931896, 1035440, 1164870, 1242528, 1331280, 1553160, 1863792, 2070880, 2329740, 2662560, 3106320, 3727584, 4659480, 6212640, 9318960, 18637920]

約数ペア:

[(1, 18637920), (2, 9318960), (3, 6212640), (4, 4659480), (5, 3727584), (6, 3106320), (7, 2662560), (8, 2329740), (9, 2070880), (10, 1863792), (12, 1553160), (14, 1331280), (15, 1242528), (16, 1164870), (18, 1035440), (20, 931896), (21, 887520), (24, 776580), (28, 665640), (30, 621264), (32, 582435), (35, 532512), (36, 517720), (40, 465948), (42, 443760), (43, 433440), (45, 414176), (48, 388290), (56, 332820), (60, 310632), (63, 295840), (70, 266256), (72, 258860), (80, 232974), (84, 221880), (86, 216720), (90, 207088), (96, 194145), (105, 177504), (112, 166410), (120, 155316), (126, 147920), (129, 144480), (140, 133128), (144, 129430), (160, 116487), (168, 110940), (172, 108360), (180, 103544), (210, 88752), (215, 86688), (224, 83205), (240, 77658), (252, 73960), (258, 72240), (280, 66564), (288, 64715), (301, 61920), (315, 59168), (336, 55470), (344, 54180), (360, 51772), (387, 48160), (420, 44376), (430, 43344), (480, 38829), (504, 36980), (516, 36120), (560, 33282), (602, 30960), (630, 29584), (645, 28896), (672, 27735), (688, 27090), (720, 25886), (774, 24080), (840, 22188), (860, 21672), (903, 20640), (1008, 18490), (1032, 18060), (1120, 16641), (1204, 15480), (1260, 14792), (1290, 14448), (1376, 13545), (1440, 12943), (1505, 12384), (1548, 12040), (1680, 11094), (1720, 10836), (1806, 10320), (1849, 10080), (1935, 9632), (2016, 9245), (2064, 9030), (2408, 7740), (2520, 7396), (2580, 7224), (2709, 6880), (3010, 6192), (3096, 6020), (3360, 5547), (3440, 5418), (3612, 5160), (3698, 5040), (3870, 4816), (4128, 4515)]