253441785

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1\times {\mathrm{641}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 416262528

約数和(自身を除く): 162820743

約数列:

[1, 3, 5, 15, 43, 129, 215, 613, 641, 645, 1839, 1923, 3065, 3205, 9195, 9615, 26359, 27563, 79077, 82689, 131795, 137815, 392933, 395385, 413445, 1178799, 1964665, 5893995, 16896119, 50688357, 84480595, 253441785]

約数ペア:

[(1, 253441785), (3, 84480595), (5, 50688357), (15, 16896119), (43, 5893995), (129, 1964665), (215, 1178799), (613, 413445), (641, 395385), (645, 392933), (1839, 137815), (1923, 131795), (3065, 82689), (3205, 79077), (9195, 27563), (9615, 26359)]