531167728

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{743}}^1$

素因数の和:1262

約数の個数: 80

約数和(自身を含む): 1270918656

約数和(自身を除く): 739750928

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 491, 728, 743, 982, 1456, 1486, 1964, 2972, 3437, 3928, 5201, 5944, 6383, 6874, 7856, 9659, 10402, 11888, 12766, 13748, 19318, 20804, 25532, 27496, 38636, 41608, 44681, 51064, 54992, 67613, 77272, 83216, 89362, 102128, 135226, 154544, 178724, 270452, 357448, 364813, 540904, 714896, 729626, 1081808, 1459252, 2553691, 2918504, 4742569, 5107382, 5837008, 9485138, 10214764, 18970276, 20429528, 33197983, 37940552, 40859056, 66395966, 75881104, 132791932, 265583864, 531167728]

約数ペア:

[(1, 531167728), (2, 265583864), (4, 132791932), (7, 75881104), (8, 66395966), (13, 40859056), (14, 37940552), (16, 33197983), (26, 20429528), (28, 18970276), (52, 10214764), (56, 9485138), (91, 5837008), (104, 5107382), (112, 4742569), (182, 2918504), (208, 2553691), (364, 1459252), (491, 1081808), (728, 729626), (743, 714896), (982, 540904), (1456, 364813), (1486, 357448), (1964, 270452), (2972, 178724), (3437, 154544), (3928, 135226), (5201, 102128), (5944, 89362), (6383, 83216), (6874, 77272), (7856, 67613), (9659, 54992), (10402, 51064), (11888, 44681), (12766, 41608), (13748, 38636), (19318, 27496), (20804, 25532)]