128663604

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{491}}^1$

素因数の和:781

約数の個数: 72

約数和(自身を含む): 338476320

約数和(自身を除く): 209812716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 251, 261, 348, 491, 502, 522, 753, 982, 1004, 1044, 1473, 1506, 1964, 2259, 2946, 3012, 4419, 4518, 5892, 7279, 8838, 9036, 14239, 14558, 17676, 21837, 28478, 29116, 42717, 43674, 56956, 65511, 85434, 87348, 123241, 128151, 131022, 170868, 246482, 256302, 262044, 369723, 492964, 512604, 739446, 1109169, 1478892, 2218338, 3573989, 4436676, 7147978, 10721967, 14295956, 21443934, 32165901, 42887868, 64331802, 128663604]

約数ペア:

[(1, 128663604), (2, 64331802), (3, 42887868), (4, 32165901), (6, 21443934), (9, 14295956), (12, 10721967), (18, 7147978), (29, 4436676), (36, 3573989), (58, 2218338), (87, 1478892), (116, 1109169), (174, 739446), (251, 512604), (261, 492964), (348, 369723), (491, 262044), (502, 256302), (522, 246482), (753, 170868), (982, 131022), (1004, 128151), (1044, 123241), (1473, 87348), (1506, 85434), (1964, 65511), (2259, 56956), (2946, 43674), (3012, 42717), (4419, 29116), (4518, 28478), (5892, 21837), (7279, 17676), (8838, 14558), (9036, 14239)]