81356290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{18617}}^1$

素因数の和:18666

約数の個数: 32

約数和(自身を含む): 160859520

約数和(自身を除く): 79503230

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 18617, 37234, 93085, 186170, 353723, 428191, 707446, 856382, 1768615, 2140955, 3537230, 4281910, 8135629, 16271258, 40678145, 81356290]

約数ペア:

[(1, 81356290), (2, 40678145), (5, 16271258), (10, 8135629), (19, 4281910), (23, 3537230), (38, 2140955), (46, 1768615), (95, 856382), (115, 707446), (190, 428191), (230, 353723), (437, 186170), (874, 93085), (2185, 37234), (4370, 18617)]