81438948

素因数分解:

$2^2\times 3^2\times {\mathrm{997}}^1\times {\mathrm{2269}}^1$

素因数の和:3276

約数の個数: 36

約数和(自身を含む): 206156860

約数和(自身を除く): 124717912

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 997, 1994, 2269, 2991, 3988, 4538, 5982, 6807, 8973, 9076, 11964, 13614, 17946, 20421, 27228, 35892, 40842, 81684, 2262193, 4524386, 6786579, 9048772, 13573158, 20359737, 27146316, 40719474, 81438948]

約数ペア:

[(1, 81438948), (2, 40719474), (3, 27146316), (4, 20359737), (6, 13573158), (9, 9048772), (12, 6786579), (18, 4524386), (36, 2262193), (997, 81684), (1994, 40842), (2269, 35892), (2991, 27228), (3988, 20421), (4538, 17946), (5982, 13614), (6807, 11964), (8973, 9076)]