28178766

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:289

約数の個数: 112

約数和(自身を含む): 79325568

約数和(自身を除く): 51146802

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 63, 66, 77, 81, 99, 126, 154, 162, 189, 198, 231, 243, 251, 297, 378, 462, 486, 502, 567, 594, 693, 729, 753, 891, 1134, 1386, 1458, 1506, 1701, 1757, 1782, 2079, 2259, 2673, 2761, 3402, 3514, 4158, 4518, 5103, 5271, 5346, 5522, 6237, 6777, 8019, 8283, 10206, 10542, 12474, 13554, 15813, 16038, 16566, 18711, 19327, 20331, 24849, 31626, 37422, 38654, 40662, 47439, 49698, 56133, 57981, 60993, 74547, 94878, 112266, 115962, 121986, 142317, 149094, 173943, 182979, 223641, 284634, 347886, 365958, 426951, 447282, 521829, 670923, 853902, 1043658, 1280853, 1341846, 1565487, 2012769, 2561706, 3130974, 4025538, 4696461, 9392922, 14089383, 28178766]

約数ペア:

[(1, 28178766), (2, 14089383), (3, 9392922), (6, 4696461), (7, 4025538), (9, 3130974), (11, 2561706), (14, 2012769), (18, 1565487), (21, 1341846), (22, 1280853), (27, 1043658), (33, 853902), (42, 670923), (54, 521829), (63, 447282), (66, 426951), (77, 365958), (81, 347886), (99, 284634), (126, 223641), (154, 182979), (162, 173943), (189, 149094), (198, 142317), (231, 121986), (243, 115962), (251, 112266), (297, 94878), (378, 74547), (462, 60993), (486, 57981), (502, 56133), (567, 49698), (594, 47439), (693, 40662), (729, 38654), (753, 37422), (891, 31626), (1134, 24849), (1386, 20331), (1458, 19327), (1506, 18711), (1701, 16566), (1757, 16038), (1782, 15813), (2079, 13554), (2259, 12474), (2673, 10542), (2761, 10206), (3402, 8283), (3514, 8019), (4158, 6777), (4518, 6237), (5103, 5522), (5271, 5346)]