4360280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1787}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 9977040

約数和(自身を除く): 5616760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1787, 2440, 3574, 7148, 8935, 14296, 17870, 35740, 71480, 109007, 218014, 436028, 545035, 872056, 1090070, 2180140, 4360280]

約数ペア:

[(1, 4360280), (2, 2180140), (4, 1090070), (5, 872056), (8, 545035), (10, 436028), (20, 218014), (40, 109007), (61, 71480), (122, 35740), (244, 17870), (305, 14296), (488, 8935), (610, 7148), (1220, 3574), (1787, 2440)]