180640258

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{21317}}^1$

素因数の和:21561

約数の個数: 16

約数和(自身を含む): 286513920

約数和(自身を除く): 105873662

約数列:

[1, 2, 19, 38, 223, 446, 4237, 8474, 21317, 42634, 405023, 810046, 4753691, 9507382, 90320129, 180640258]

約数ペア:

[(1, 180640258), (2, 90320129), (19, 9507382), (38, 4753691), (223, 810046), (446, 405023), (4237, 42634), (8474, 21317)]