87740865

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{20101}}^1$

素因数の和:20209

約数の個数: 24

約数和(自身を含む): 153659688

約数和(自身を除く): 65918823

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 485, 873, 1455, 4365, 20101, 60303, 100505, 180909, 301515, 904545, 1949797, 5849391, 9748985, 17548173, 29246955, 87740865]

約数ペア:

[(1, 87740865), (3, 29246955), (5, 17548173), (9, 9748985), (15, 5849391), (45, 1949797), (97, 904545), (291, 301515), (485, 180909), (873, 100505), (1455, 60303), (4365, 20101)]