51438120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{18637}}^1$

素因数の和:18674

約数の個数: 64

約数和(自身を含む): 161032320

約数和(自身を除く): 109594200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 18637, 37274, 55911, 74548, 93185, 111822, 149096, 186370, 223644, 279555, 372740, 428651, 447288, 559110, 745480, 857302, 1118220, 1285953, 1714604, 2143255, 2236440, 2571906, 3429208, 4286510, 5143812, 6429765, 8573020, 10287624, 12859530, 17146040, 25719060, 51438120]

約数ペア:

[(1, 51438120), (2, 25719060), (3, 17146040), (4, 12859530), (5, 10287624), (6, 8573020), (8, 6429765), (10, 5143812), (12, 4286510), (15, 3429208), (20, 2571906), (23, 2236440), (24, 2143255), (30, 1714604), (40, 1285953), (46, 1118220), (60, 857302), (69, 745480), (92, 559110), (115, 447288), (120, 428651), (138, 372740), (184, 279555), (230, 223644), (276, 186370), (345, 149096), (460, 111822), (552, 93185), (690, 74548), (920, 55911), (1380, 37274), (2760, 18637)]