81301275

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 160864704

約数和(自身を除く): 79563429

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 107, 165, 225, 275, 307, 321, 495, 535, 825, 921, 963, 1177, 1535, 1605, 2475, 2675, 2763, 3377, 3531, 4605, 4815, 5885, 7675, 8025, 10131, 10593, 13815, 16885, 17655, 23025, 24075, 29425, 30393, 32849, 50655, 52965, 69075, 84425, 88275, 98547, 151965, 164245, 253275, 264825, 295641, 361339, 492735, 759825, 821225, 1084017, 1478205, 1806695, 2463675, 3252051, 5420085, 7391025, 9033475, 16260255, 27100425, 81301275]

約数ペア:

[(1, 81301275), (3, 27100425), (5, 16260255), (9, 9033475), (11, 7391025), (15, 5420085), (25, 3252051), (33, 2463675), (45, 1806695), (55, 1478205), (75, 1084017), (99, 821225), (107, 759825), (165, 492735), (225, 361339), (275, 295641), (307, 264825), (321, 253275), (495, 164245), (535, 151965), (825, 98547), (921, 88275), (963, 84425), (1177, 69075), (1535, 52965), (1605, 50655), (2475, 32849), (2675, 30393), (2763, 29425), (3377, 24075), (3531, 23025), (4605, 17655), (4815, 16885), (5885, 13815), (7675, 10593), (8025, 10131)]