20290328

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1019}}^1$

素因数の和:1175

約数の個数: 32

約数和(自身を含む): 40392000

約数和(自身を除く): 20101672

約数列:

[1, 2, 4, 8, 19, 38, 76, 131, 152, 262, 524, 1019, 1048, 2038, 2489, 4076, 4978, 8152, 9956, 19361, 19912, 38722, 77444, 133489, 154888, 266978, 533956, 1067912, 2536291, 5072582, 10145164, 20290328]

約数ペア:

[(1, 20290328), (2, 10145164), (4, 5072582), (8, 2536291), (19, 1067912), (38, 533956), (76, 266978), (131, 154888), (152, 133489), (262, 77444), (524, 38722), (1019, 19912), (1048, 19361), (2038, 9956), (2489, 8152), (4076, 4978)]