128888172

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1042

約数の個数: 144

約数和(自身を含む): 406864640

約数和(自身を除く): 277976468

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 81, 84, 108, 114, 126, 133, 162, 171, 189, 228, 243, 252, 266, 324, 342, 378, 399, 486, 513, 532, 567, 684, 756, 798, 972, 997, 1026, 1134, 1197, 1539, 1596, 1701, 1994, 2052, 2268, 2394, 2991, 3078, 3402, 3591, 3988, 4617, 4788, 5982, 6156, 6804, 6979, 7182, 8973, 9234, 10773, 11964, 13958, 14364, 17946, 18468, 18943, 20937, 21546, 26919, 27916, 32319, 35892, 37886, 41874, 43092, 53838, 56829, 62811, 64638, 75772, 80757, 83748, 107676, 113658, 125622, 129276, 132601, 161514, 170487, 188433, 227316, 242271, 251244, 265202, 323028, 340974, 376866, 397803, 484542, 511461, 530404, 565299, 681948, 753732, 795606, 969084, 1022922, 1130598, 1193409, 1534383, 1591212, 1695897, 2045844, 2261196, 2386818, 3068766, 3391794, 3580227, 4603149, 4773636, 6137532, 6783588, 7160454, 9206298, 10740681, 14320908, 18412596, 21481362, 32222043, 42962724, 64444086, 128888172]

約数ペア:

[(1, 128888172), (2, 64444086), (3, 42962724), (4, 32222043), (6, 21481362), (7, 18412596), (9, 14320908), (12, 10740681), (14, 9206298), (18, 7160454), (19, 6783588), (21, 6137532), (27, 4773636), (28, 4603149), (36, 3580227), (38, 3391794), (42, 3068766), (54, 2386818), (57, 2261196), (63, 2045844), (76, 1695897), (81, 1591212), (84, 1534383), (108, 1193409), (114, 1130598), (126, 1022922), (133, 969084), (162, 795606), (171, 753732), (189, 681948), (228, 565299), (243, 530404), (252, 511461), (266, 484542), (324, 397803), (342, 376866), (378, 340974), (399, 323028), (486, 265202), (513, 251244), (532, 242271), (567, 227316), (684, 188433), (756, 170487), (798, 161514), (972, 132601), (997, 129276), (1026, 125622), (1134, 113658), (1197, 107676), (1539, 83748), (1596, 80757), (1701, 75772), (1994, 64638), (2052, 62811), (2268, 56829), (2394, 53838), (2991, 43092), (3078, 41874), (3402, 37886), (3591, 35892), (3988, 32319), (4617, 27916), (4788, 26919), (5982, 21546), (6156, 20937), (6804, 18943), (6979, 18468), (7182, 17946), (8973, 14364), (9234, 13958), (10773, 11964)]