80077780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{210731}}^1$

素因数の和:210759

約数の個数: 24

約数和(自身を含む): 177014880

約数和(自身を除く): 96937100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 210731, 421462, 842924, 1053655, 2107310, 4003889, 4214620, 8007778, 16015556, 20019445, 40038890, 80077780]

約数ペア:

[(1, 80077780), (2, 40038890), (4, 20019445), (5, 16015556), (10, 8007778), (19, 4214620), (20, 4003889), (38, 2107310), (76, 1053655), (95, 842924), (190, 421462), (380, 210731)]