20976380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55201}}^1$

素因数の和:55229

約数の個数: 24

約数和(自身を含む): 46369680

約数和(自身を除く): 25393300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55201, 110402, 220804, 276005, 552010, 1048819, 1104020, 2097638, 4195276, 5244095, 10488190, 20976380]

約数ペア:

[(1, 20976380), (2, 10488190), (4, 5244095), (5, 4195276), (10, 2097638), (19, 1104020), (20, 1048819), (38, 552010), (76, 276005), (95, 220804), (190, 110402), (380, 55201)]