20180490904

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^2\times {\mathrm{681221}}^1$

素因数の和:681280

約数の個数: 48

約数和(自身を含む): 45205891920

約数和(自身を除く): 25025401016

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 529, 644, 1058, 1288, 2116, 3703, 4232, 7406, 14812, 29624, 681221, 1362442, 2724884, 4768547, 5449768, 9537094, 15668083, 19074188, 31336166, 38148376, 62672332, 109676581, 125344664, 219353162, 360365909, 438706324, 720731818, 877412648, 1441463636, 2522561363, 2882927272, 5045122726, 10090245452, 20180490904]

約数ペア:

[(1, 20180490904), (2, 10090245452), (4, 5045122726), (7, 2882927272), (8, 2522561363), (14, 1441463636), (23, 877412648), (28, 720731818), (46, 438706324), (56, 360365909), (92, 219353162), (161, 125344664), (184, 109676581), (322, 62672332), (529, 38148376), (644, 31336166), (1058, 19074188), (1288, 15668083), (2116, 9537094), (3703, 5449768), (4232, 4768547), (7406, 2724884), (14812, 1362442), (29624, 681221)]