20190136

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{557}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 39774240

約数和(自身を除く): 19584104

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 197, 394, 557, 788, 1114, 1576, 2228, 4456, 4531, 9062, 12811, 18124, 25622, 36248, 51244, 102488, 109729, 219458, 438916, 877832, 2523767, 5047534, 10095068, 20190136]

約数ペア:

[(1, 20190136), (2, 10095068), (4, 5047534), (8, 2523767), (23, 877832), (46, 438916), (92, 219458), (184, 109729), (197, 102488), (394, 51244), (557, 36248), (788, 25622), (1114, 18124), (1576, 12811), (2228, 9062), (4456, 4531)]