720290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 1451520

約数和(自身を除く): 731230

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 223, 323, 446, 646, 1115, 1615, 2230, 3230, 3791, 4237, 7582, 8474, 18955, 21185, 37910, 42370, 72029, 144058, 360145, 720290]

約数ペア:

[(1, 720290), (2, 360145), (5, 144058), (10, 72029), (17, 42370), (19, 37910), (34, 21185), (38, 18955), (85, 8474), (95, 7582), (170, 4237), (190, 3791), (223, 3230), (323, 2230), (446, 1615), (646, 1115)]