256815105

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1\times {\mathrm{653}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 416634624

約数和(自身を除く): 159819519

約数列:

[1, 3, 5, 15, 157, 167, 471, 501, 653, 785, 835, 1959, 2355, 2505, 3265, 9795, 26219, 78657, 102521, 109051, 131095, 307563, 327153, 393285, 512605, 545255, 1537815, 1635765, 17121007, 51363021, 85605035, 256815105]

約数ペア:

[(1, 256815105), (3, 85605035), (5, 51363021), (15, 17121007), (157, 1635765), (167, 1537815), (471, 545255), (501, 512605), (653, 393285), (785, 327153), (835, 307563), (1959, 131095), (2355, 109051), (2505, 102521), (3265, 78657), (9795, 26219)]