81666845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{743}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 112492800

約数和(自身を除く): 30825955

約数列:

[1, 5, 13, 19, 65, 89, 95, 247, 445, 743, 1157, 1235, 1691, 3715, 5785, 8455, 9659, 14117, 21983, 48295, 66127, 70585, 109915, 183521, 330635, 859651, 917605, 1256413, 4298255, 6282065, 16333369, 81666845]

約数ペア:

[(1, 81666845), (5, 16333369), (13, 6282065), (19, 4298255), (65, 1256413), (89, 917605), (95, 859651), (247, 330635), (445, 183521), (743, 109915), (1157, 70585), (1235, 66127), (1691, 48295), (3715, 21983), (5785, 14117), (8455, 9659)]