20709392

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:612

約数の個数: 60

約数和(自身を含む): 46507440

約数和(自身を除く): 25798048

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 121, 152, 176, 209, 242, 304, 418, 484, 563, 836, 968, 1126, 1672, 1936, 2252, 2299, 3344, 4504, 4598, 6193, 9008, 9196, 10697, 12386, 18392, 21394, 24772, 36784, 42788, 49544, 68123, 85576, 99088, 117667, 136246, 171152, 235334, 272492, 470668, 544984, 941336, 1089968, 1294337, 1882672, 2588674, 5177348, 10354696, 20709392]

約数ペア:

[(1, 20709392), (2, 10354696), (4, 5177348), (8, 2588674), (11, 1882672), (16, 1294337), (19, 1089968), (22, 941336), (38, 544984), (44, 470668), (76, 272492), (88, 235334), (121, 171152), (152, 136246), (176, 117667), (209, 99088), (242, 85576), (304, 68123), (418, 49544), (484, 42788), (563, 36784), (836, 24772), (968, 21394), (1126, 18392), (1672, 12386), (1936, 10697), (2252, 9196), (2299, 9008), (3344, 6193), (4504, 4598)]