81257445

素因数分解:

$3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6763}}^1$

素因数の和:6866

約数の個数: 32

約数和(自身を含む): 146102400

約数和(自身を除く): 64844955

約数列:

[1, 3, 5, 9, 15, 27, 45, 89, 135, 267, 445, 801, 1335, 2403, 4005, 6763, 12015, 20289, 33815, 60867, 101445, 182601, 304335, 601907, 913005, 1805721, 3009535, 5417163, 9028605, 16251489, 27085815, 81257445]

約数ペア:

[(1, 81257445), (3, 27085815), (5, 16251489), (9, 9028605), (15, 5417163), (27, 3009535), (45, 1805721), (89, 913005), (135, 601907), (267, 304335), (445, 182601), (801, 101445), (1335, 60867), (2403, 33815), (4005, 20289), (6763, 12015)]