81385905

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{1723}}^1$

素因数の和:1845

約数の個数: 32

約数和(自身を含む): 135051264

約数和(自身を除く): 53665359

約数列:

[1, 3, 5, 15, 47, 67, 141, 201, 235, 335, 705, 1005, 1723, 3149, 5169, 8615, 9447, 15745, 25845, 47235, 80981, 115441, 242943, 346323, 404905, 577205, 1214715, 1731615, 5425727, 16277181, 27128635, 81385905]

約数ペア:

[(1, 81385905), (3, 27128635), (5, 16277181), (15, 5425727), (47, 1731615), (67, 1214715), (141, 577205), (201, 404905), (235, 346323), (335, 242943), (705, 115441), (1005, 80981), (1723, 47235), (3149, 25845), (5169, 15745), (8615, 9447)]