18656260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19037}}^1$

素因数の和:19060

約数の個数: 36

約数和(自身を含む): 45576972

約数和(自身を除く): 26920712

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19037, 38074, 76148, 95185, 133259, 190370, 266518, 380740, 533036, 666295, 932813, 1332590, 1865626, 2665180, 3731252, 4664065, 9328130, 18656260]

約数ペア:

[(1, 18656260), (2, 9328130), (4, 4664065), (5, 3731252), (7, 2665180), (10, 1865626), (14, 1332590), (20, 932813), (28, 666295), (35, 533036), (49, 380740), (70, 266518), (98, 190370), (140, 133259), (196, 95185), (245, 76148), (490, 38074), (980, 19037)]