8721945

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^2$

素因数の和:143

約数の個数: 48

約数和(自身を含む): 16490880

約数和(自身を除く): 7768935

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 53, 69, 115, 135, 159, 207, 265, 345, 477, 621, 795, 1035, 1219, 1431, 2385, 2809, 3105, 3657, 6095, 7155, 8427, 10971, 14045, 18285, 25281, 32913, 42135, 54855, 64607, 75843, 126405, 164565, 193821, 323035, 379215, 581463, 969105, 1744389, 2907315, 8721945]

約数ペア:

[(1, 8721945), (3, 2907315), (5, 1744389), (9, 969105), (15, 581463), (23, 379215), (27, 323035), (45, 193821), (53, 164565), (69, 126405), (115, 75843), (135, 64607), (159, 54855), (207, 42135), (265, 32913), (345, 25281), (477, 18285), (621, 14045), (795, 10971), (1035, 8427), (1219, 7155), (1431, 6095), (2385, 3657), (2809, 3105)]