1647945

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:343

約数の個数: 40

約数和(自身を含む): 3191496

約数和(自身を除く): 1543551

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 313, 351, 405, 585, 939, 1053, 1565, 1755, 2817, 4069, 4695, 5265, 8451, 12207, 14085, 20345, 25353, 36621, 42255, 61035, 109863, 126765, 183105, 329589, 549315, 1647945]

約数ペア:

[(1, 1647945), (3, 549315), (5, 329589), (9, 183105), (13, 126765), (15, 109863), (27, 61035), (39, 42255), (45, 36621), (65, 25353), (81, 20345), (117, 14085), (135, 12207), (195, 8451), (313, 5265), (351, 4695), (405, 4069), (585, 2817), (939, 1755), (1053, 1565)]