215261305

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{487}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 301607424

約数和(自身を除く): 86346119

約数列:

[1, 5, 7, 35, 73, 173, 365, 487, 511, 865, 1211, 2435, 2555, 3409, 6055, 12629, 17045, 35551, 63145, 84251, 88403, 177755, 248857, 421255, 442015, 589757, 1244285, 2948785, 6150323, 30751615, 43052261, 215261305]

約数ペア:

[(1, 215261305), (5, 43052261), (7, 30751615), (35, 6150323), (73, 2948785), (173, 1244285), (365, 589757), (487, 442015), (511, 421255), (865, 248857), (1211, 177755), (2435, 88403), (2555, 84251), (3409, 63145), (6055, 35551), (12629, 17045)]