80719220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{212419}}^1$

素因数の和:212447

約数の個数: 24

約数和(自身を含む): 178432800

約数和(自身を除く): 97713580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 212419, 424838, 849676, 1062095, 2124190, 4035961, 4248380, 8071922, 16143844, 20179805, 40359610, 80719220]

約数ペア:

[(1, 80719220), (2, 40359610), (4, 20179805), (5, 16143844), (10, 8071922), (19, 4248380), (20, 4035961), (38, 2124190), (76, 1062095), (95, 849676), (190, 424838), (380, 212419)]