81525528

素因数分解:

$2^3\times 3^6\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2028

約数の個数: 112

約数和(自身を含む): 262057680

約数和(自身を除く): 180532152

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 243, 252, 324, 378, 486, 504, 567, 648, 729, 756, 972, 1134, 1458, 1512, 1701, 1944, 1997, 2268, 2916, 3402, 3994, 4536, 5103, 5832, 5991, 6804, 7988, 10206, 11982, 13608, 13979, 15976, 17973, 20412, 23964, 27958, 35946, 40824, 41937, 47928, 53919, 55916, 71892, 83874, 107838, 111832, 125811, 143784, 161757, 167748, 215676, 251622, 323514, 335496, 377433, 431352, 485271, 503244, 647028, 754866, 970542, 1006488, 1132299, 1294056, 1455813, 1509732, 1941084, 2264598, 2911626, 3019464, 3396897, 3882168, 4529196, 5823252, 6793794, 9058392, 10190691, 11646504, 13587588, 20381382, 27175176, 40762764, 81525528]

約数ペア:

[(1, 81525528), (2, 40762764), (3, 27175176), (4, 20381382), (6, 13587588), (7, 11646504), (8, 10190691), (9, 9058392), (12, 6793794), (14, 5823252), (18, 4529196), (21, 3882168), (24, 3396897), (27, 3019464), (28, 2911626), (36, 2264598), (42, 1941084), (54, 1509732), (56, 1455813), (63, 1294056), (72, 1132299), (81, 1006488), (84, 970542), (108, 754866), (126, 647028), (162, 503244), (168, 485271), (189, 431352), (216, 377433), (243, 335496), (252, 323514), (324, 251622), (378, 215676), (486, 167748), (504, 161757), (567, 143784), (648, 125811), (729, 111832), (756, 107838), (972, 83874), (1134, 71892), (1458, 55916), (1512, 53919), (1701, 47928), (1944, 41937), (1997, 40824), (2268, 35946), (2916, 27958), (3402, 23964), (3994, 20412), (4536, 17973), (5103, 15976), (5832, 13979), (5991, 13608), (6804, 11982), (7988, 10206)]