1855180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 4213440

約数和(自身を除く): 2358260

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 109, 115, 148, 185, 218, 230, 370, 436, 460, 545, 740, 851, 1090, 1702, 2180, 2507, 3404, 4033, 4255, 5014, 8066, 8510, 10028, 12535, 16132, 17020, 20165, 25070, 40330, 50140, 80660, 92759, 185518, 371036, 463795, 927590, 1855180]

約数ペア:

[(1, 1855180), (2, 927590), (4, 463795), (5, 371036), (10, 185518), (20, 92759), (23, 80660), (37, 50140), (46, 40330), (74, 25070), (92, 20165), (109, 17020), (115, 16132), (148, 12535), (185, 10028), (218, 8510), (230, 8066), (370, 5014), (436, 4255), (460, 4033), (545, 3404), (740, 2507), (851, 2180), (1090, 1702)]