27398380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{72101}}^1$

素因数の和:72129

約数の個数: 24

約数和(自身を含む): 60565680

約数和(自身を除く): 33167300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 72101, 144202, 288404, 360505, 721010, 1369919, 1442020, 2739838, 5479676, 6849595, 13699190, 27398380]

約数ペア:

[(1, 27398380), (2, 13699190), (4, 6849595), (5, 5479676), (10, 2739838), (19, 1442020), (20, 1369919), (38, 721010), (76, 360505), (95, 288404), (190, 144202), (380, 72101)]