638940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{463}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 1870848

約数和(自身を除く): 1231908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 463, 690, 926, 1380, 1389, 1852, 2315, 2778, 4630, 5556, 6945, 9260, 10649, 13890, 21298, 27780, 31947, 42596, 53245, 63894, 106490, 127788, 159735, 212980, 319470, 638940]

約数ペア:

[(1, 638940), (2, 319470), (3, 212980), (4, 159735), (5, 127788), (6, 106490), (10, 63894), (12, 53245), (15, 42596), (20, 31947), (23, 27780), (30, 21298), (46, 13890), (60, 10649), (69, 9260), (92, 6945), (115, 5556), (138, 4630), (230, 2778), (276, 2315), (345, 1852), (460, 1389), (463, 1380), (690, 926)]