178820316

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1627}}^1$

素因数の和:1751

約数の個数: 72

約数和(自身を含む): 469332864

約数和(自身を除く): 290512548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 71, 86, 129, 142, 172, 213, 258, 284, 387, 426, 516, 639, 774, 852, 1278, 1548, 1627, 2556, 3053, 3254, 4881, 6106, 6508, 9159, 9762, 12212, 14643, 18318, 19524, 27477, 29286, 36636, 54954, 58572, 69961, 109908, 115517, 139922, 209883, 231034, 279844, 346551, 419766, 462068, 629649, 693102, 839532, 1039653, 1259298, 1386204, 2079306, 2518596, 4158612, 4967231, 9934462, 14901693, 19868924, 29803386, 44705079, 59606772, 89410158, 178820316]

約数ペア:

[(1, 178820316), (2, 89410158), (3, 59606772), (4, 44705079), (6, 29803386), (9, 19868924), (12, 14901693), (18, 9934462), (36, 4967231), (43, 4158612), (71, 2518596), (86, 2079306), (129, 1386204), (142, 1259298), (172, 1039653), (213, 839532), (258, 693102), (284, 629649), (387, 462068), (426, 419766), (516, 346551), (639, 279844), (774, 231034), (852, 209883), (1278, 139922), (1548, 115517), (1627, 109908), (2556, 69961), (3053, 58572), (3254, 54954), (4881, 36636), (6106, 29286), (6508, 27477), (9159, 19524), (9762, 18318), (12212, 14643)]