81405324

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 240

約数和(自身を含む): 286868736

約数和(自身を除く): 205463412

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 13, 14, 18, 21, 22, 26, 27, 28, 33, 36, 39, 42, 44, 52, 54, 63, 66, 77, 78, 81, 84, 91, 99, 108, 117, 126, 132, 143, 154, 156, 162, 182, 189, 198, 231, 234, 251, 252, 273, 286, 297, 308, 324, 351, 364, 378, 396, 429, 462, 468, 502, 546, 567, 572, 594, 693, 702, 753, 756, 819, 858, 891, 924, 1001, 1004, 1053, 1092, 1134, 1188, 1287, 1386, 1404, 1506, 1638, 1716, 1757, 1782, 2002, 2079, 2106, 2259, 2268, 2457, 2574, 2761, 2772, 3003, 3012, 3263, 3276, 3514, 3564, 3861, 4004, 4158, 4212, 4518, 4914, 5148, 5271, 5522, 6006, 6237, 6526, 6777, 7028, 7371, 7722, 8283, 8316, 9009, 9036, 9789, 9828, 10542, 11044, 11583, 12012, 12474, 13052, 13554, 14742, 15444, 15813, 16566, 18018, 19327, 19578, 20331, 21084, 22841, 23166, 24849, 24948, 27027, 27108, 29367, 29484, 31626, 33132, 35893, 36036, 38654, 39156, 40662, 45682, 46332, 47439, 49698, 54054, 57981, 58734, 63252, 68523, 71786, 74547, 77308, 81081, 81324, 88101, 91364, 94878, 99396, 107679, 108108, 115962, 117468, 137046, 142317, 143572, 149094, 162162, 173943, 176202, 189756, 205569, 215358, 223641, 231924, 251251, 264303, 274092, 284634, 298188, 323037, 324324, 347886, 352404, 411138, 430716, 447282, 502502, 521829, 528606, 569268, 616707, 646074, 695772, 753753, 822276, 894564, 969111, 1005004, 1043658, 1057212, 1233414, 1292148, 1507506, 1565487, 1850121, 1938222, 2087316, 2261259, 2466828, 2907333, 3015012, 3130974, 3700242, 3876444, 4522518, 5814666, 6261948, 6783777, 7400484, 9045036, 11629332, 13567554, 20351331, 27135108, 40702662, 81405324]

約数ペア:

[(1, 81405324), (2, 40702662), (3, 27135108), (4, 20351331), (6, 13567554), (7, 11629332), (9, 9045036), (11, 7400484), (12, 6783777), (13, 6261948), (14, 5814666), (18, 4522518), (21, 3876444), (22, 3700242), (26, 3130974), (27, 3015012), (28, 2907333), (33, 2466828), (36, 2261259), (39, 2087316), (42, 1938222), (44, 1850121), (52, 1565487), (54, 1507506), (63, 1292148), (66, 1233414), (77, 1057212), (78, 1043658), (81, 1005004), (84, 969111), (91, 894564), (99, 822276), (108, 753753), (117, 695772), (126, 646074), (132, 616707), (143, 569268), (154, 528606), (156, 521829), (162, 502502), (182, 447282), (189, 430716), (198, 411138), (231, 352404), (234, 347886), (251, 324324), (252, 323037), (273, 298188), (286, 284634), (297, 274092), (308, 264303), (324, 251251), (351, 231924), (364, 223641), (378, 215358), (396, 205569), (429, 189756), (462, 176202), (468, 173943), (502, 162162), (546, 149094), (567, 143572), (572, 142317), (594, 137046), (693, 117468), (702, 115962), (753, 108108), (756, 107679), (819, 99396), (858, 94878), (891, 91364), (924, 88101), (1001, 81324), (1004, 81081), (1053, 77308), (1092, 74547), (1134, 71786), (1188, 68523), (1287, 63252), (1386, 58734), (1404, 57981), (1506, 54054), (1638, 49698), (1716, 47439), (1757, 46332), (1782, 45682), (2002, 40662), (2079, 39156), (2106, 38654), (2259, 36036), (2268, 35893), (2457, 33132), (2574, 31626), (2761, 29484), (2772, 29367), (3003, 27108), (3012, 27027), (3263, 24948), (3276, 24849), (3514, 23166), (3564, 22841), (3861, 21084), (4004, 20331), (4158, 19578), (4212, 19327), (4518, 18018), (4914, 16566), (5148, 15813), (5271, 15444), (5522, 14742), (6006, 13554), (6237, 13052), (6526, 12474), (6777, 12012), (7028, 11583), (7371, 11044), (7722, 10542), (8283, 9828), (8316, 9789), (9009, 9036)]