28520505

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5417}}^1$

素因数の和:5447

約数の個数: 40

約数和(自身を含む): 55068552

約数和(自身を除く): 26548047

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 5265, 5417, 16251, 27085, 48753, 70421, 81255, 146259, 211263, 243765, 352105, 438777, 633789, 731295, 1056315, 1901367, 2193885, 3168945, 5704101, 9506835, 28520505]

約数ペア:

[(1, 28520505), (3, 9506835), (5, 5704101), (9, 3168945), (13, 2193885), (15, 1901367), (27, 1056315), (39, 731295), (45, 633789), (65, 438777), (81, 352105), (117, 243765), (135, 211263), (195, 146259), (351, 81255), (405, 70421), (585, 48753), (1053, 27085), (1755, 16251), (5265, 5417)]