20557488

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 160

約数和(自身を含む): 66424320

約数和(自身を除く): 45866832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 34, 42, 48, 51, 56, 59, 61, 68, 84, 102, 112, 118, 119, 122, 136, 168, 177, 183, 204, 236, 238, 244, 272, 336, 354, 357, 366, 408, 413, 427, 472, 476, 488, 708, 714, 732, 816, 826, 854, 944, 952, 976, 1003, 1037, 1239, 1281, 1416, 1428, 1464, 1652, 1708, 1904, 2006, 2074, 2478, 2562, 2832, 2856, 2928, 3009, 3111, 3304, 3416, 3599, 4012, 4148, 4956, 5124, 5712, 6018, 6222, 6608, 6832, 7021, 7198, 7259, 8024, 8296, 9912, 10248, 10797, 12036, 12444, 14042, 14396, 14518, 16048, 16592, 19824, 20496, 21063, 21594, 21777, 24072, 24888, 25193, 28084, 28792, 29036, 42126, 43188, 43554, 48144, 49776, 50386, 56168, 57584, 58072, 61183, 75579, 84252, 86376, 87108, 100772, 112336, 116144, 122366, 151158, 168504, 172752, 174216, 183549, 201544, 244732, 302316, 337008, 348432, 367098, 403088, 428281, 489464, 604632, 734196, 856562, 978928, 1209264, 1284843, 1468392, 1713124, 2569686, 2936784, 3426248, 5139372, 6852496, 10278744, 20557488]

約数ペア:

[(1, 20557488), (2, 10278744), (3, 6852496), (4, 5139372), (6, 3426248), (7, 2936784), (8, 2569686), (12, 1713124), (14, 1468392), (16, 1284843), (17, 1209264), (21, 978928), (24, 856562), (28, 734196), (34, 604632), (42, 489464), (48, 428281), (51, 403088), (56, 367098), (59, 348432), (61, 337008), (68, 302316), (84, 244732), (102, 201544), (112, 183549), (118, 174216), (119, 172752), (122, 168504), (136, 151158), (168, 122366), (177, 116144), (183, 112336), (204, 100772), (236, 87108), (238, 86376), (244, 84252), (272, 75579), (336, 61183), (354, 58072), (357, 57584), (366, 56168), (408, 50386), (413, 49776), (427, 48144), (472, 43554), (476, 43188), (488, 42126), (708, 29036), (714, 28792), (732, 28084), (816, 25193), (826, 24888), (854, 24072), (944, 21777), (952, 21594), (976, 21063), (1003, 20496), (1037, 19824), (1239, 16592), (1281, 16048), (1416, 14518), (1428, 14396), (1464, 14042), (1652, 12444), (1708, 12036), (1904, 10797), (2006, 10248), (2074, 9912), (2478, 8296), (2562, 8024), (2832, 7259), (2856, 7198), (2928, 7021), (3009, 6832), (3111, 6608), (3304, 6222), (3416, 6018), (3599, 5712), (4012, 5124), (4148, 4956)]