20469328

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 60

約数和(自身を含む): 44445940

約数和(自身を除く): 23976612

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 97, 109, 121, 176, 194, 218, 242, 388, 436, 484, 776, 872, 968, 1067, 1199, 1552, 1744, 1936, 2134, 2398, 4268, 4796, 8536, 9592, 10573, 11737, 13189, 17072, 19184, 21146, 23474, 26378, 42292, 46948, 52756, 84584, 93896, 105512, 116303, 169168, 187792, 211024, 232606, 465212, 930424, 1279333, 1860848, 2558666, 5117332, 10234664, 20469328]

約数ペア:

[(1, 20469328), (2, 10234664), (4, 5117332), (8, 2558666), (11, 1860848), (16, 1279333), (22, 930424), (44, 465212), (88, 232606), (97, 211024), (109, 187792), (121, 169168), (176, 116303), (194, 105512), (218, 93896), (242, 84584), (388, 52756), (436, 46948), (484, 42292), (776, 26378), (872, 23474), (968, 21146), (1067, 19184), (1199, 17072), (1552, 13189), (1744, 11737), (1936, 10573), (2134, 9592), (2398, 8536), (4268, 4796)]