12887105

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 20684160

約数和(自身を除く): 7797055

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 121, 179, 187, 385, 595, 605, 847, 895, 935, 1253, 1309, 1969, 2057, 3043, 4235, 6265, 6545, 9845, 10285, 13783, 14399, 15215, 21301, 21659, 33473, 68915, 71995, 106505, 108295, 151613, 167365, 234311, 368203, 758065, 1171555, 1841015, 2577421, 12887105]

約数ペア:

[(1, 12887105), (5, 2577421), (7, 1841015), (11, 1171555), (17, 758065), (35, 368203), (55, 234311), (77, 167365), (85, 151613), (119, 108295), (121, 106505), (179, 71995), (187, 68915), (385, 33473), (595, 21659), (605, 21301), (847, 15215), (895, 14399), (935, 13783), (1253, 10285), (1309, 9845), (1969, 6545), (2057, 6265), (3043, 4235)]