18988156688

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{431}}^1\times {\mathrm{74419}}^1$

素因数の和:74895

約数の個数: 40

約数和(自身を含む): 37872040320

約数和(自身を除く): 18883883632

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 431, 592, 862, 1724, 3448, 6896, 15947, 31894, 63788, 74419, 127576, 148838, 255152, 297676, 595352, 1190704, 2753503, 5507006, 11014012, 22028024, 32074589, 44056048, 64149178, 128298356, 256596712, 513193424, 1186759793, 2373519586, 4747039172, 9494078344, 18988156688]

約数ペア:

[(1, 18988156688), (2, 9494078344), (4, 4747039172), (8, 2373519586), (16, 1186759793), (37, 513193424), (74, 256596712), (148, 128298356), (296, 64149178), (431, 44056048), (592, 32074589), (862, 22028024), (1724, 11014012), (3448, 5507006), (6896, 2753503), (15947, 1190704), (31894, 595352), (63788, 297676), (74419, 255152), (127576, 148838)]