2461220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1129}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 5220600

約数和(自身を除く): 2759380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 1129, 2180, 2258, 4516, 5645, 11290, 22580, 123061, 246122, 492244, 615305, 1230610, 2461220]

約数ペア:

[(1, 2461220), (2, 1230610), (4, 615305), (5, 492244), (10, 246122), (20, 123061), (109, 22580), (218, 11290), (436, 5645), (545, 4516), (1090, 2258), (1129, 2180)]