20515480

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{8693}}^1$

素因数の和:8763

約数の個数: 32

約数和(自身を含む): 46947600

約数和(自身を除く): 26432120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 8693, 17386, 34772, 43465, 69544, 86930, 173860, 347720, 512887, 1025774, 2051548, 2564435, 4103096, 5128870, 10257740, 20515480]

約数ペア:

[(1, 20515480), (2, 10257740), (4, 5128870), (5, 4103096), (8, 2564435), (10, 2051548), (20, 1025774), (40, 512887), (59, 347720), (118, 173860), (236, 86930), (295, 69544), (472, 43465), (590, 34772), (1180, 17386), (2360, 8693)]