20321664

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1$

素因数の和:328

約数の個数: 128

約数和(自身を含む): 62570880

約数和(自身を除く): 42249216

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 17, 22, 24, 32, 33, 34, 44, 48, 51, 64, 66, 68, 88, 96, 102, 128, 132, 136, 176, 187, 192, 204, 264, 272, 283, 352, 374, 384, 408, 528, 544, 561, 566, 704, 748, 816, 849, 1056, 1088, 1122, 1132, 1408, 1496, 1632, 1698, 2112, 2176, 2244, 2264, 2992, 3113, 3264, 3396, 4224, 4488, 4528, 4811, 5984, 6226, 6528, 6792, 8976, 9056, 9339, 9622, 11968, 12452, 13584, 14433, 17952, 18112, 18678, 19244, 23936, 24904, 27168, 28866, 35904, 36224, 37356, 38488, 49808, 52921, 54336, 57732, 71808, 74712, 76976, 99616, 105842, 108672, 115464, 149424, 153952, 158763, 199232, 211684, 230928, 298848, 307904, 317526, 398464, 423368, 461856, 597696, 615808, 635052, 846736, 923712, 1195392, 1270104, 1693472, 1847424, 2540208, 3386944, 5080416, 6773888, 10160832, 20321664]

約数ペア:

[(1, 20321664), (2, 10160832), (3, 6773888), (4, 5080416), (6, 3386944), (8, 2540208), (11, 1847424), (12, 1693472), (16, 1270104), (17, 1195392), (22, 923712), (24, 846736), (32, 635052), (33, 615808), (34, 597696), (44, 461856), (48, 423368), (51, 398464), (64, 317526), (66, 307904), (68, 298848), (88, 230928), (96, 211684), (102, 199232), (128, 158763), (132, 153952), (136, 149424), (176, 115464), (187, 108672), (192, 105842), (204, 99616), (264, 76976), (272, 74712), (283, 71808), (352, 57732), (374, 54336), (384, 52921), (408, 49808), (528, 38488), (544, 37356), (561, 36224), (566, 35904), (704, 28866), (748, 27168), (816, 24904), (849, 23936), (1056, 19244), (1088, 18678), (1122, 18112), (1132, 17952), (1408, 14433), (1496, 13584), (1632, 12452), (1698, 11968), (2112, 9622), (2176, 9339), (2244, 9056), (2264, 8976), (2992, 6792), (3113, 6528), (3264, 6226), (3396, 5984), (4224, 4811), (4488, 4528)]