20084085

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 41679360

約数和(自身を除く): 21595275

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 53, 63, 105, 135, 159, 189, 265, 315, 371, 401, 477, 795, 945, 1113, 1203, 1431, 1855, 2005, 2385, 2807, 3339, 3609, 5565, 6015, 7155, 8421, 10017, 10827, 14035, 16695, 18045, 21253, 25263, 42105, 50085, 54135, 63759, 75789, 106265, 126315, 148771, 191277, 318795, 378945, 446313, 573831, 743855, 956385, 1338939, 2231565, 2869155, 4016817, 6694695, 20084085]

約数ペア:

[(1, 20084085), (3, 6694695), (5, 4016817), (7, 2869155), (9, 2231565), (15, 1338939), (21, 956385), (27, 743855), (35, 573831), (45, 446313), (53, 378945), (63, 318795), (105, 191277), (135, 148771), (159, 126315), (189, 106265), (265, 75789), (315, 63759), (371, 54135), (401, 50085), (477, 42105), (795, 25263), (945, 21253), (1113, 18045), (1203, 16695), (1431, 14035), (1855, 10827), (2005, 10017), (2385, 8421), (2807, 7155), (3339, 6015), (3609, 5565)]