68291440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{121949}}^1$

素因数の和:121969

約数の個数: 40

約数和(自身を含む): 181461600

約数和(自身を除く): 113170160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 121949, 243898, 487796, 609745, 853643, 975592, 1219490, 1707286, 1951184, 2438980, 3414572, 4268215, 4877960, 6829144, 8536430, 9755920, 13658288, 17072860, 34145720, 68291440]

約数ペア:

[(1, 68291440), (2, 34145720), (4, 17072860), (5, 13658288), (7, 9755920), (8, 8536430), (10, 6829144), (14, 4877960), (16, 4268215), (20, 3414572), (28, 2438980), (35, 1951184), (40, 1707286), (56, 1219490), (70, 975592), (80, 853643), (112, 609745), (140, 487796), (280, 243898), (560, 121949)]