1659439120

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{340049}}^1$

素因数の和:340123

約数の個数: 40

約数和(自身を含む): 3921456600

約数和(自身を除く): 2262017480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 340049, 680098, 1360196, 1700245, 2720392, 3400490, 5440784, 6800980, 13601960, 20742989, 27203920, 41485978, 82971956, 103714945, 165943912, 207429890, 331887824, 414859780, 829719560, 1659439120]

約数ペア:

[(1, 1659439120), (2, 829719560), (4, 414859780), (5, 331887824), (8, 207429890), (10, 165943912), (16, 103714945), (20, 82971956), (40, 41485978), (61, 27203920), (80, 20742989), (122, 13601960), (244, 6800980), (305, 5440784), (488, 3400490), (610, 2720392), (976, 1700245), (1220, 1360196), (2440, 680098), (4880, 340049)]