19547770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21924230

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 47, 55, 94, 95, 110, 190, 199, 209, 235, 398, 418, 470, 517, 893, 995, 1034, 1045, 1786, 1990, 2090, 2189, 2585, 3781, 4378, 4465, 5170, 7562, 8930, 9353, 9823, 10945, 18706, 18905, 19646, 21890, 37810, 41591, 46765, 49115, 83182, 93530, 98230, 102883, 177707, 205766, 207955, 355414, 415910, 514415, 888535, 1028830, 1777070, 1954777, 3909554, 9773885, 19547770]

約数ペア:

[(1, 19547770), (2, 9773885), (5, 3909554), (10, 1954777), (11, 1777070), (19, 1028830), (22, 888535), (38, 514415), (47, 415910), (55, 355414), (94, 207955), (95, 205766), (110, 177707), (190, 102883), (199, 98230), (209, 93530), (235, 83182), (398, 49115), (418, 46765), (470, 41591), (517, 37810), (893, 21890), (995, 19646), (1034, 18905), (1045, 18706), (1786, 10945), (1990, 9823), (2090, 9353), (2189, 8930), (2585, 7562), (3781, 5170), (4378, 4465)]