81668574

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 120

約数和(自身を含む): 209915640

約数和(自身を除く): 128247066

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 81, 114, 117, 157, 162, 169, 171, 234, 247, 314, 338, 342, 351, 471, 494, 507, 513, 702, 741, 942, 1014, 1026, 1053, 1413, 1482, 1521, 1539, 2041, 2106, 2223, 2826, 2983, 3042, 3078, 3211, 4082, 4239, 4446, 4563, 5966, 6123, 6422, 6669, 8478, 8949, 9126, 9633, 12246, 12717, 13338, 13689, 17898, 18369, 19266, 20007, 25434, 26533, 26847, 27378, 28899, 36738, 38779, 40014, 53066, 53694, 55107, 57798, 77558, 79599, 80541, 86697, 110214, 116337, 159198, 161082, 165321, 173394, 232674, 238797, 241623, 260091, 330642, 349011, 477594, 483246, 504127, 520182, 698022, 716391, 1008254, 1047033, 1432782, 1512381, 2094066, 2149173, 3024762, 3141099, 4298346, 4537143, 6282198, 9074286, 13611429, 27222858, 40834287, 81668574]

約数ペア:

[(1, 81668574), (2, 40834287), (3, 27222858), (6, 13611429), (9, 9074286), (13, 6282198), (18, 4537143), (19, 4298346), (26, 3141099), (27, 3024762), (38, 2149173), (39, 2094066), (54, 1512381), (57, 1432782), (78, 1047033), (81, 1008254), (114, 716391), (117, 698022), (157, 520182), (162, 504127), (169, 483246), (171, 477594), (234, 349011), (247, 330642), (314, 260091), (338, 241623), (342, 238797), (351, 232674), (471, 173394), (494, 165321), (507, 161082), (513, 159198), (702, 116337), (741, 110214), (942, 86697), (1014, 80541), (1026, 79599), (1053, 77558), (1413, 57798), (1482, 55107), (1521, 53694), (1539, 53066), (2041, 40014), (2106, 38779), (2223, 36738), (2826, 28899), (2983, 27378), (3042, 26847), (3078, 26533), (3211, 25434), (4082, 20007), (4239, 19266), (4446, 18369), (4563, 17898), (5966, 13689), (6123, 13338), (6422, 12717), (6669, 12246), (8478, 9633), (8949, 9126)]