31080945

素因数分解:

$3^1\times 5^1\times 7^4\times {\mathrm{863}}^1$

素因数の和:899

約数の個数: 40

約数和(自身を含む): 58081536

約数和(自身を除く): 27000591

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 863, 1029, 1715, 2401, 2589, 4315, 5145, 6041, 7203, 12005, 12945, 18123, 30205, 36015, 42287, 90615, 126861, 211435, 296009, 634305, 888027, 1480045, 2072063, 4440135, 6216189, 10360315, 31080945]

約数ペア:

[(1, 31080945), (3, 10360315), (5, 6216189), (7, 4440135), (15, 2072063), (21, 1480045), (35, 888027), (49, 634305), (105, 296009), (147, 211435), (245, 126861), (343, 90615), (735, 42287), (863, 36015), (1029, 30205), (1715, 18123), (2401, 12945), (2589, 12005), (4315, 7203), (5145, 6041)]