201565960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{82609}}^1$

素因数の和:82681

約数の個数: 32

約数和(自身を含む): 460963800

約数和(自身を除く): 259397840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 82609, 165218, 330436, 413045, 660872, 826090, 1652180, 3304360, 5039149, 10078298, 20156596, 25195745, 40313192, 50391490, 100782980, 201565960]

約数ペア:

[(1, 201565960), (2, 100782980), (4, 50391490), (5, 40313192), (8, 25195745), (10, 20156596), (20, 10078298), (40, 5039149), (61, 3304360), (122, 1652180), (244, 826090), (305, 660872), (488, 413045), (610, 330436), (1220, 165218), (2440, 82609)]