407877980

素因数分解:

$2^2\times 5^1\times {\mathrm{2399}}^1\times {\mathrm{8501}}^1$

素因数の和:10909

約数の個数: 24

約数和(自身を含む): 857001600

約数和(自身を除く): 449123620

約数列:

[1, 2, 4, 5, 10, 20, 2399, 4798, 8501, 9596, 11995, 17002, 23990, 34004, 42505, 47980, 85010, 170020, 20393899, 40787798, 81575596, 101969495, 203938990, 407877980]

約数ペア:

[(1, 407877980), (2, 203938990), (4, 101969495), (5, 81575596), (10, 40787798), (20, 20393899), (2399, 170020), (4798, 85010), (8501, 47980), (9596, 42505), (11995, 34004), (17002, 23990)]