20178380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53101}}^1$

素因数の和:53129

約数の個数: 24

約数和(自身を含む): 44605680

約数和(自身を除く): 24427300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53101, 106202, 212404, 265505, 531010, 1008919, 1062020, 2017838, 4035676, 5044595, 10089190, 20178380]

約数ペア:

[(1, 20178380), (2, 10089190), (4, 5044595), (5, 4035676), (10, 2017838), (19, 1062020), (20, 1008919), (38, 531010), (76, 265505), (95, 212404), (190, 106202), (380, 53101)]