20176288

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 45795456

約数和(自身を除く): 25619168

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 43, 44, 62, 86, 88, 124, 172, 176, 248, 341, 344, 352, 473, 496, 682, 688, 946, 992, 1333, 1364, 1376, 1849, 1892, 2666, 2728, 3698, 3784, 5332, 5456, 7396, 7568, 10664, 10912, 14663, 14792, 15136, 20339, 21328, 29326, 29584, 40678, 42656, 57319, 58652, 59168, 81356, 114638, 117304, 162712, 229276, 234608, 325424, 458552, 469216, 630509, 650848, 917104, 1261018, 1834208, 2522036, 5044072, 10088144, 20176288]

約数ペア:

[(1, 20176288), (2, 10088144), (4, 5044072), (8, 2522036), (11, 1834208), (16, 1261018), (22, 917104), (31, 650848), (32, 630509), (43, 469216), (44, 458552), (62, 325424), (86, 234608), (88, 229276), (124, 162712), (172, 117304), (176, 114638), (248, 81356), (341, 59168), (344, 58652), (352, 57319), (473, 42656), (496, 40678), (682, 29584), (688, 29326), (946, 21328), (992, 20339), (1333, 15136), (1364, 14792), (1376, 14663), (1849, 10912), (1892, 10664), (2666, 7568), (2728, 7396), (3698, 5456), (3784, 5332)]