21260880

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:235

約数の個数: 200

約数和(自身を含む): 78590952

約数和(自身を除く): 57330072

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 102, 108, 120, 135, 136, 144, 153, 162, 170, 180, 193, 204, 216, 240, 255, 270, 272, 306, 324, 340, 360, 386, 405, 408, 432, 459, 510, 540, 579, 612, 648, 680, 720, 765, 772, 810, 816, 918, 965, 1020, 1080, 1158, 1224, 1296, 1360, 1377, 1530, 1544, 1620, 1737, 1836, 1930, 2040, 2160, 2295, 2316, 2448, 2754, 2895, 3060, 3088, 3240, 3281, 3474, 3672, 3860, 4080, 4590, 4632, 5211, 5508, 5790, 6120, 6480, 6562, 6885, 6948, 7344, 7720, 8685, 9180, 9264, 9843, 10422, 11016, 11580, 12240, 13124, 13770, 13896, 15440, 15633, 16405, 17370, 18360, 19686, 20844, 22032, 23160, 26055, 26248, 27540, 27792, 29529, 31266, 32810, 34740, 36720, 39372, 41688, 46320, 49215, 52110, 52496, 55080, 59058, 62532, 65620, 69480, 78165, 78744, 83376, 88587, 98430, 104220, 110160, 118116, 125064, 131240, 138960, 147645, 156330, 157488, 177174, 196860, 208440, 236232, 250128, 262480, 265761, 295290, 312660, 354348, 393720, 416880, 442935, 472464, 531522, 590580, 625320, 708696, 787440, 885870, 1063044, 1181160, 1250640, 1328805, 1417392, 1771740, 2126088, 2362320, 2657610, 3543480, 4252176, 5315220, 7086960, 10630440, 21260880]

約数ペア:

[(1, 21260880), (2, 10630440), (3, 7086960), (4, 5315220), (5, 4252176), (6, 3543480), (8, 2657610), (9, 2362320), (10, 2126088), (12, 1771740), (15, 1417392), (16, 1328805), (17, 1250640), (18, 1181160), (20, 1063044), (24, 885870), (27, 787440), (30, 708696), (34, 625320), (36, 590580), (40, 531522), (45, 472464), (48, 442935), (51, 416880), (54, 393720), (60, 354348), (68, 312660), (72, 295290), (80, 265761), (81, 262480), (85, 250128), (90, 236232), (102, 208440), (108, 196860), (120, 177174), (135, 157488), (136, 156330), (144, 147645), (153, 138960), (162, 131240), (170, 125064), (180, 118116), (193, 110160), (204, 104220), (216, 98430), (240, 88587), (255, 83376), (270, 78744), (272, 78165), (306, 69480), (324, 65620), (340, 62532), (360, 59058), (386, 55080), (405, 52496), (408, 52110), (432, 49215), (459, 46320), (510, 41688), (540, 39372), (579, 36720), (612, 34740), (648, 32810), (680, 31266), (720, 29529), (765, 27792), (772, 27540), (810, 26248), (816, 26055), (918, 23160), (965, 22032), (1020, 20844), (1080, 19686), (1158, 18360), (1224, 17370), (1296, 16405), (1360, 15633), (1377, 15440), (1530, 13896), (1544, 13770), (1620, 13124), (1737, 12240), (1836, 11580), (1930, 11016), (2040, 10422), (2160, 9843), (2295, 9264), (2316, 9180), (2448, 8685), (2754, 7720), (2895, 7344), (3060, 6948), (3088, 6885), (3240, 6562), (3281, 6480), (3474, 6120), (3672, 5790), (3860, 5508), (4080, 5211), (4590, 4632)]