20800656

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:353

約数の個数: 120

約数和(自身を含む): 63980280

約数和(自身を除く): 43179624

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 29, 34, 36, 48, 51, 58, 68, 72, 87, 102, 116, 136, 144, 153, 174, 204, 232, 261, 272, 293, 306, 348, 408, 464, 493, 522, 586, 612, 696, 816, 879, 986, 1044, 1172, 1224, 1392, 1479, 1758, 1972, 2088, 2344, 2448, 2637, 2958, 3516, 3944, 4176, 4437, 4688, 4981, 5274, 5916, 7032, 7888, 8497, 8874, 9962, 10548, 11832, 14064, 14943, 16994, 17748, 19924, 21096, 23664, 25491, 29886, 33988, 35496, 39848, 42192, 44829, 50982, 59772, 67976, 70992, 76473, 79696, 89658, 101964, 119544, 135952, 144449, 152946, 179316, 203928, 239088, 288898, 305892, 358632, 407856, 433347, 577796, 611784, 717264, 866694, 1155592, 1223568, 1300041, 1733388, 2311184, 2600082, 3466776, 5200164, 6933552, 10400328, 20800656]

約数ペア:

[(1, 20800656), (2, 10400328), (3, 6933552), (4, 5200164), (6, 3466776), (8, 2600082), (9, 2311184), (12, 1733388), (16, 1300041), (17, 1223568), (18, 1155592), (24, 866694), (29, 717264), (34, 611784), (36, 577796), (48, 433347), (51, 407856), (58, 358632), (68, 305892), (72, 288898), (87, 239088), (102, 203928), (116, 179316), (136, 152946), (144, 144449), (153, 135952), (174, 119544), (204, 101964), (232, 89658), (261, 79696), (272, 76473), (293, 70992), (306, 67976), (348, 59772), (408, 50982), (464, 44829), (493, 42192), (522, 39848), (586, 35496), (612, 33988), (696, 29886), (816, 25491), (879, 23664), (986, 21096), (1044, 19924), (1172, 17748), (1224, 16994), (1392, 14943), (1479, 14064), (1758, 11832), (1972, 10548), (2088, 9962), (2344, 8874), (2448, 8497), (2637, 7888), (2958, 7032), (3516, 5916), (3944, 5274), (4176, 4981), (4437, 4688)]