27978830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1217}}^1$

素因数の和:1265

約数の個数: 48

約数和(自身を含む): 58317840

約数和(自身を除く): 30339010

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 121, 190, 209, 242, 418, 605, 1045, 1210, 1217, 2090, 2299, 2434, 4598, 6085, 11495, 12170, 13387, 22990, 23123, 26774, 46246, 66935, 115615, 133870, 147257, 231230, 254353, 294514, 508706, 736285, 1271765, 1472570, 2543530, 2797883, 5595766, 13989415, 27978830]

約数ペア:

[(1, 27978830), (2, 13989415), (5, 5595766), (10, 2797883), (11, 2543530), (19, 1472570), (22, 1271765), (38, 736285), (55, 508706), (95, 294514), (110, 254353), (121, 231230), (190, 147257), (209, 133870), (242, 115615), (418, 66935), (605, 46246), (1045, 26774), (1210, 23123), (1217, 22990), (2090, 13387), (2299, 12170), (2434, 11495), (4598, 6085)]