3980385

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{449}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 6949800

約数和(自身を除く): 2969415

約数列:

[1, 3, 5, 9, 15, 45, 197, 449, 591, 985, 1347, 1773, 2245, 2955, 4041, 6735, 8865, 20205, 88453, 265359, 442265, 796077, 1326795, 3980385]

約数ペア:

[(1, 3980385), (3, 1326795), (5, 796077), (9, 442265), (15, 265359), (45, 88453), (197, 20205), (449, 8865), (591, 6735), (985, 4041), (1347, 2955), (1773, 2245)]