19985157052

素因数分解:

$2^2\times 7^3\times {\mathrm{2647}}^1\times {\mathrm{5503}}^1$

素因数の和:8175

約数の個数: 48

約数和(自身を含む): 40808857600

約数和(自身を除く): 20823700548

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 2647, 5294, 5503, 10588, 11006, 18529, 22012, 37058, 38521, 74116, 77042, 129703, 154084, 259406, 269647, 518812, 539294, 907921, 1078588, 1815842, 1887529, 3631684, 3775058, 7550116, 14566441, 29132882, 58265764, 101965087, 203930174, 407860348, 713755609, 1427511218, 2855022436, 4996289263, 9992578526, 19985157052]

約数ペア:

[(1, 19985157052), (2, 9992578526), (4, 4996289263), (7, 2855022436), (14, 1427511218), (28, 713755609), (49, 407860348), (98, 203930174), (196, 101965087), (343, 58265764), (686, 29132882), (1372, 14566441), (2647, 7550116), (5294, 3775058), (5503, 3631684), (10588, 1887529), (11006, 1815842), (18529, 1078588), (22012, 907921), (37058, 539294), (38521, 518812), (74116, 269647), (77042, 259406), (129703, 154084)]