38868880

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1249}}^1$

素因数の和:1651

約数の個数: 40

約数和(自身を含む): 90675000

約数和(自身を除く): 51806120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1249, 1556, 1945, 2498, 3112, 3890, 4996, 6224, 6245, 7780, 9992, 12490, 15560, 19984, 24980, 31120, 49960, 99920, 485861, 971722, 1943444, 2429305, 3886888, 4858610, 7773776, 9717220, 19434440, 38868880]

約数ペア:

[(1, 38868880), (2, 19434440), (4, 9717220), (5, 7773776), (8, 4858610), (10, 3886888), (16, 2429305), (20, 1943444), (40, 971722), (80, 485861), (389, 99920), (778, 49960), (1249, 31120), (1556, 24980), (1945, 19984), (2498, 15560), (3112, 12490), (3890, 9992), (4996, 7780), (6224, 6245)]