640030959

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{1213}}^1\times {\mathrm{2549}}^1$

素因数の和:3791

約数の個数: 24

約数和(自身を含む): 965858400

約数和(自身を除く): 325827441

約数列:

[1, 3, 9, 23, 69, 207, 1213, 2549, 3639, 7647, 10917, 22941, 27899, 58627, 83697, 175881, 251091, 527643, 3091937, 9275811, 27827433, 71114551, 213343653, 640030959]

約数ペア:

[(1, 640030959), (3, 213343653), (9, 71114551), (23, 27827433), (69, 9275811), (207, 3091937), (1213, 527643), (2549, 251091), (3639, 175881), (7647, 83697), (10917, 58627), (22941, 27899)]